Home / 1,493.02-2,239.54-519.13

Finding the Fourth Proportional to 1,493.02, 2,239.54 and 519.13

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Solution

The fourth proportional to 1,493.02, 2,239.54 and 519.13 is: 778.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.02 : 2,239.54 = 519.13 : x
  2. Step 2: Convert to fraction form
    1,493.02/2,239.54 = 519.13/x
  3. Step 3: Cross multiply
    1,493.02x = 2,239.54 × 519.13
  4. Step 4: Simplify right side
    1,493.02x = 1,162,609.80
  5. Step 5: Solve for x
    x = 1,162,609.80/1,493.02
  6. Step 6: Final answer
    x = 778.70

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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.