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Finding the Fourth Proportional to 1,498.83, 2,248.37 and 458.75

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Solution

The fourth proportional to 1,498.83, 2,248.37 and 458.75 is: 688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498.83 : 2,248.37 = 458.75 : x
  2. Step 2: Convert to fraction form
    1,498.83/2,248.37 = 458.75/x
  3. Step 3: Cross multiply
    1,498.83x = 2,248.37 × 458.75
  4. Step 4: Simplify right side
    1,498.83x = 1,031,426.20
  5. Step 5: Solve for x
    x = 1,031,426.20/1,498.83
  6. Step 6: Final answer
    x = 688.15

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1.5x scale

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.