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Finding the Fourth Proportional to 1,104.34, 1,656.03 and 410.89

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Solution

The fourth proportional to 1,104.34, 1,656.03 and 410.89 is: 616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.34 : 1,656.03 = 410.89 : x
  2. Step 2: Convert to fraction form
    1,104.34/1,656.03 = 410.89/x
  3. Step 3: Cross multiply
    1,104.34x = 1,656.03 × 410.89
  4. Step 4: Simplify right side
    1,104.34x = 680,437.89
  5. Step 5: Solve for x
    x = 680,437.89/1,104.34
  6. Step 6: Final answer
    x = 616.15

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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.