Home / 1,587.38-2,190.78-924.27

Finding the Fourth Proportional to 1,587.38, 2,190.78 and 924.27

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Solution

The fourth proportional to 1,587.38, 2,190.78 and 924.27 is: 1,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.38 : 2,190.78 = 924.27 : x
  2. Step 2: Convert to fraction form
    1,587.38/2,190.78 = 924.27/x
  3. Step 3: Cross multiply
    1,587.38x = 2,190.78 × 924.27
  4. Step 4: Simplify right side
    1,587.38x = 2,024,872.23
  5. Step 5: Solve for x
    x = 2,024,872.23/1,587.38
  6. Step 6: Final answer
    x = 1,275.61

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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.