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Finding the Fourth Proportional to 3,751.93, 5,171.97 and 2,490.76

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Solution

The fourth proportional to 3,751.93, 5,171.97 and 2,490.76 is: 3,433.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.93 : 5,171.97 = 2,490.76 : x
  2. Step 2: Convert to fraction form
    3,751.93/5,171.97 = 2,490.76/x
  3. Step 3: Cross multiply
    3,751.93x = 5,171.97 × 2,490.76
  4. Step 4: Simplify right side
    3,751.93x = 12,882,123.07
  5. Step 5: Solve for x
    x = 12,882,123.07/3,751.93
  6. Step 6: Final answer
    x = 3,433.47

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1.5x scale

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.