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Finding the Fourth Proportional to 3,772.49, 5,658.81 and 1,307.39

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Solution

The fourth proportional to 3,772.49, 5,658.81 and 1,307.39 is: 1,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.49 : 5,658.81 = 1,307.39 : x
  2. Step 2: Convert to fraction form
    3,772.49/5,658.81 = 1,307.39/x
  3. Step 3: Cross multiply
    3,772.49x = 5,658.81 × 1,307.39
  4. Step 4: Simplify right side
    3,772.49x = 7,398,270.24
  5. Step 5: Solve for x
    x = 7,398,270.24/3,772.49
  6. Step 6: Final answer
    x = 1,961.11

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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.