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Finding the Fourth Proportional to 2,861.87, 4,292.82 and 1,012.99

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Solution

The fourth proportional to 2,861.87, 4,292.82 and 1,012.99 is: 1,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.87 : 4,292.82 = 1,012.99 : x
  2. Step 2: Convert to fraction form
    2,861.87/4,292.82 = 1,012.99/x
  3. Step 3: Cross multiply
    2,861.87x = 4,292.82 × 1,012.99
  4. Step 4: Simplify right side
    2,861.87x = 4,348,573.00
  5. Step 5: Solve for x
    x = 4,348,573.00/2,861.87
  6. Step 6: Final answer
    x = 1,519.49

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.