Home / 1,308.92-1,966.07-1,265.18

Finding the Fourth Proportional to 1,308.92, 1,966.07 and 1,265.18

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Solution

The fourth proportional to 1,308.92, 1,966.07 and 1,265.18 is: 1,900.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.92 : 1,966.07 = 1,265.18 : x
  2. Step 2: Convert to fraction form
    1,308.92/1,966.07 = 1,265.18/x
  3. Step 3: Cross multiply
    1,308.92x = 1,966.07 × 1,265.18
  4. Step 4: Simplify right side
    1,308.92x = 2,487,425.78
  5. Step 5: Solve for x
    x = 2,487,425.78/1,308.92
  6. Step 6: Final answer
    x = 1,900.37

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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.