Home / 1,637.14-2,259.15-928.90

Finding the Fourth Proportional to 1,637.14, 2,259.15 and 928.90

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Solution

The fourth proportional to 1,637.14, 2,259.15 and 928.90 is: 1,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.14 : 2,259.15 = 928.90 : x
  2. Step 2: Convert to fraction form
    1,637.14/2,259.15 = 928.90/x
  3. Step 3: Cross multiply
    1,637.14x = 2,259.15 × 928.90
  4. Step 4: Simplify right side
    1,637.14x = 2,098,524.44
  5. Step 5: Solve for x
    x = 2,098,524.44/1,637.14
  6. Step 6: Final answer
    x = 1,281.82

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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.