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Finding the Fourth Proportional to 1,593.34, 2,389.23 and 656.11

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Solution

The fourth proportional to 1,593.34, 2,389.23 and 656.11 is: 983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.34 : 2,389.23 = 656.11 : x
  2. Step 2: Convert to fraction form
    1,593.34/2,389.23 = 656.11/x
  3. Step 3: Cross multiply
    1,593.34x = 2,389.23 × 656.11
  4. Step 4: Simplify right side
    1,593.34x = 1,567,597.70
  5. Step 5: Solve for x
    x = 1,567,597.70/1,593.34
  6. Step 6: Final answer
    x = 983.84

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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.