Home / 1,031.28-1,546.81-373.12

Finding the Fourth Proportional to 1,031.28, 1,546.81 and 373.12

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Solution

The fourth proportional to 1,031.28, 1,546.81 and 373.12 is: 559.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.28 : 1,546.81 = 373.12 : x
  2. Step 2: Convert to fraction form
    1,031.28/1,546.81 = 373.12/x
  3. Step 3: Cross multiply
    1,031.28x = 1,546.81 × 373.12
  4. Step 4: Simplify right side
    1,031.28x = 577,151.75
  5. Step 5: Solve for x
    x = 577,151.75/1,031.28
  6. Step 6: Final answer
    x = 559.65

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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.