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Finding the Fourth Proportional to 1,589.22, 2,384.13 and 493.33

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Solution

The fourth proportional to 1,589.22, 2,384.13 and 493.33 is: 740.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.22 : 2,384.13 = 493.33 : x
  2. Step 2: Convert to fraction form
    1,589.22/2,384.13 = 493.33/x
  3. Step 3: Cross multiply
    1,589.22x = 2,384.13 × 493.33
  4. Step 4: Simplify right side
    1,589.22x = 1,176,162.85
  5. Step 5: Solve for x
    x = 1,176,162.85/1,589.22
  6. Step 6: Final answer
    x = 740.09

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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.