Home / 1,054.38-1,581.13-360.91

Finding the Fourth Proportional to 1,054.38, 1,581.13 and 360.91

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Solution

The fourth proportional to 1,054.38, 1,581.13 and 360.91 is: 541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.38 : 1,581.13 = 360.91 : x
  2. Step 2: Convert to fraction form
    1,054.38/1,581.13 = 360.91/x
  3. Step 3: Cross multiply
    1,054.38x = 1,581.13 × 360.91
  4. Step 4: Simplify right side
    1,054.38x = 570,635.92
  5. Step 5: Solve for x
    x = 570,635.92/1,054.38
  6. Step 6: Final answer
    x = 541.21

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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.