Home / 1,711.10-2,564.67-981.17

Finding the Fourth Proportional to 1,711.10, 2,564.67 and 981.17

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Solution

The fourth proportional to 1,711.10, 2,564.67 and 981.17 is: 1,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.10 : 2,564.67 = 981.17 : x
  2. Step 2: Convert to fraction form
    1,711.10/2,564.67 = 981.17/x
  3. Step 3: Cross multiply
    1,711.10x = 2,564.67 × 981.17
  4. Step 4: Simplify right side
    1,711.10x = 2,516,377.26
  5. Step 5: Solve for x
    x = 2,516,377.26/1,711.10
  6. Step 6: Final answer
    x = 1,470.62

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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.