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Finding the Fourth Proportional to 637.66, 881.04 and 613.36

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Solution

The fourth proportional to 637.66, 881.04 and 613.36 is: 847.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.66 : 881.04 = 613.36 : x
  2. Step 2: Convert to fraction form
    637.66/881.04 = 613.36/x
  3. Step 3: Cross multiply
    637.66x = 881.04 × 613.36
  4. Step 4: Simplify right side
    637.66x = 540,394.69
  5. Step 5: Solve for x
    x = 540,394.69/637.66
  6. Step 6: Final answer
    x = 847.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.