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Finding the Fourth Proportional to 2,930.61, 4,397.13 and 1,369.47

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Solution

The fourth proportional to 2,930.61, 4,397.13 and 1,369.47 is: 2,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.61 : 4,397.13 = 1,369.47 : x
  2. Step 2: Convert to fraction form
    2,930.61/4,397.13 = 1,369.47/x
  3. Step 3: Cross multiply
    2,930.61x = 4,397.13 × 1,369.47
  4. Step 4: Simplify right side
    2,930.61x = 6,021,737.62
  5. Step 5: Solve for x
    x = 6,021,737.62/2,930.61
  6. Step 6: Final answer
    x = 2,054.77

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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.