Home / 1,265.61-1,746.68-706.28

Finding the Fourth Proportional to 1,265.61, 1,746.68 and 706.28

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Solution

The fourth proportional to 1,265.61, 1,746.68 and 706.28 is: 974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.61 : 1,746.68 = 706.28 : x
  2. Step 2: Convert to fraction form
    1,265.61/1,746.68 = 706.28/x
  3. Step 3: Cross multiply
    1,265.61x = 1,746.68 × 706.28
  4. Step 4: Simplify right side
    1,265.61x = 1,233,635.53
  5. Step 5: Solve for x
    x = 1,233,635.53/1,265.61
  6. Step 6: Final answer
    x = 974.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.