Home / 1,054.38-1,581.57-284.88

Finding the Fourth Proportional to 1,054.38, 1,581.57 and 284.88

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Solution

The fourth proportional to 1,054.38, 1,581.57 and 284.88 is: 427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.38 : 1,581.57 = 284.88 : x
  2. Step 2: Convert to fraction form
    1,054.38/1,581.57 = 284.88/x
  3. Step 3: Cross multiply
    1,054.38x = 1,581.57 × 284.88
  4. Step 4: Simplify right side
    1,054.38x = 450,557.66
  5. Step 5: Solve for x
    x = 450,557.66/1,054.38
  6. Step 6: Final answer
    x = 427.32

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.