Home / 1,265.80-1,746.75-706.33

Finding the Fourth Proportional to 1,265.80, 1,746.75 and 706.33

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Solution

The fourth proportional to 1,265.80, 1,746.75 and 706.33 is: 974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.80 : 1,746.75 = 706.33 : x
  2. Step 2: Convert to fraction form
    1,265.80/1,746.75 = 706.33/x
  3. Step 3: Cross multiply
    1,265.80x = 1,746.75 × 706.33
  4. Step 4: Simplify right side
    1,265.80x = 1,233,781.93
  5. Step 5: Solve for x
    x = 1,233,781.93/1,265.80
  6. Step 6: Final answer
    x = 974.71

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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.