Home / 1,475.20-2,034.48-885.52

Finding the Fourth Proportional to 1,475.20, 2,034.48 and 885.52

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Solution

The fourth proportional to 1,475.20, 2,034.48 and 885.52 is: 1,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.20 : 2,034.48 = 885.52 : x
  2. Step 2: Convert to fraction form
    1,475.20/2,034.48 = 885.52/x
  3. Step 3: Cross multiply
    1,475.20x = 2,034.48 × 885.52
  4. Step 4: Simplify right side
    1,475.20x = 1,801,572.73
  5. Step 5: Solve for x
    x = 1,801,572.73/1,475.20
  6. Step 6: Final answer
    x = 1,221.24

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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.