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Finding the Fourth Proportional to 1,710.16, 2,562.48 and 887.20

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Solution

The fourth proportional to 1,710.16, 2,562.48 and 887.20 is: 1,329.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.16 : 2,562.48 = 887.20 : x
  2. Step 2: Convert to fraction form
    1,710.16/2,562.48 = 887.20/x
  3. Step 3: Cross multiply
    1,710.16x = 2,562.48 × 887.20
  4. Step 4: Simplify right side
    1,710.16x = 2,273,432.26
  5. Step 5: Solve for x
    x = 2,273,432.26/1,710.16
  6. Step 6: Final answer
    x = 1,329.37

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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.