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Finding the Fourth Proportional to 2,491.41, 3,737.45 and 847.52

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Solution

The fourth proportional to 2,491.41, 3,737.45 and 847.52 is: 1,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.41 : 3,737.45 = 847.52 : x
  2. Step 2: Convert to fraction form
    2,491.41/3,737.45 = 847.52/x
  3. Step 3: Cross multiply
    2,491.41x = 3,737.45 × 847.52
  4. Step 4: Simplify right side
    2,491.41x = 3,167,540.70
  5. Step 5: Solve for x
    x = 3,167,540.70/2,491.41
  6. Step 6: Final answer
    x = 1,271.38

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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.