Home / 4,220.50-6,330.76-1,142.50

Finding the Fourth Proportional to 4,220.50, 6,330.76 and 1,142.50

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Solution

The fourth proportional to 4,220.50, 6,330.76 and 1,142.50 is: 1,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.50 : 6,330.76 = 1,142.50 : x
  2. Step 2: Convert to fraction form
    4,220.50/6,330.76 = 1,142.50/x
  3. Step 3: Cross multiply
    4,220.50x = 6,330.76 × 1,142.50
  4. Step 4: Simplify right side
    4,220.50x = 7,232,893.30
  5. Step 5: Solve for x
    x = 7,232,893.30/4,220.50
  6. Step 6: Final answer
    x = 1,713.75

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.