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Finding the Fourth Proportional to 3,937.18, 5,901.60 and 1,304

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Solution

The fourth proportional to 3,937.18, 5,901.60 and 1,304 is: 1,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.18 : 5,901.60 = 1,304 : x
  2. Step 2: Convert to fraction form
    3,937.18/5,901.60 = 1,304/x
  3. Step 3: Cross multiply
    3,937.18x = 5,901.60 × 1,304
  4. Step 4: Simplify right side
    3,937.18x = 7,695,686.40
  5. Step 5: Solve for x
    x = 7,695,686.40/3,937.18
  6. Step 6: Final answer
    x = 1,954.62

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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.