Home / 1,781.03-2,458.66-1,252.69

Finding the Fourth Proportional to 1,781.03, 2,458.66 and 1,252.69

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Solution

The fourth proportional to 1,781.03, 2,458.66 and 1,252.69 is: 1,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.03 : 2,458.66 = 1,252.69 : x
  2. Step 2: Convert to fraction form
    1,781.03/2,458.66 = 1,252.69/x
  3. Step 3: Cross multiply
    1,781.03x = 2,458.66 × 1,252.69
  4. Step 4: Simplify right side
    1,781.03x = 3,079,932.53
  5. Step 5: Solve for x
    x = 3,079,932.53/1,781.03
  6. Step 6: Final answer
    x = 1,729.30

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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.