Home / 1,493.08-2,239.65-397.55

Finding the Fourth Proportional to 1,493.08, 2,239.65 and 397.55

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Solution

The fourth proportional to 1,493.08, 2,239.65 and 397.55 is: 596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.08 : 2,239.65 = 397.55 : x
  2. Step 2: Convert to fraction form
    1,493.08/2,239.65 = 397.55/x
  3. Step 3: Cross multiply
    1,493.08x = 2,239.65 × 397.55
  4. Step 4: Simplify right side
    1,493.08x = 890,378.46
  5. Step 5: Solve for x
    x = 890,378.46/1,493.08
  6. Step 6: Final answer
    x = 596.34

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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.