Home / 1,781.16-2,454.48-1,282.92

Finding the Fourth Proportional to 1,781.16, 2,454.48 and 1,282.92

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Solution

The fourth proportional to 1,781.16, 2,454.48 and 1,282.92 is: 1,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.16 : 2,454.48 = 1,282.92 : x
  2. Step 2: Convert to fraction form
    1,781.16/2,454.48 = 1,282.92/x
  3. Step 3: Cross multiply
    1,781.16x = 2,454.48 × 1,282.92
  4. Step 4: Simplify right side
    1,781.16x = 3,148,901.48
  5. Step 5: Solve for x
    x = 3,148,901.48/1,781.16
  6. Step 6: Final answer
    x = 1,767.89

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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.