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Finding the Fourth Proportional to 2,517.57, 3,776.36 and 873.99

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Solution

The fourth proportional to 2,517.57, 3,776.36 and 873.99 is: 1,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.57 : 3,776.36 = 873.99 : x
  2. Step 2: Convert to fraction form
    2,517.57/3,776.36 = 873.99/x
  3. Step 3: Cross multiply
    2,517.57x = 3,776.36 × 873.99
  4. Step 4: Simplify right side
    2,517.57x = 3,300,496.51
  5. Step 5: Solve for x
    x = 3,300,496.51/2,517.57
  6. Step 6: Final answer
    x = 1,310.99

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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.