Home / 5,291.17-7,940.40-2,372.74

Finding the Fourth Proportional to 5,291.17, 7,940.40 and 2,372.74

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Solution

The fourth proportional to 5,291.17, 7,940.40 and 2,372.74 is: 3,560.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.17 : 7,940.40 = 2,372.74 : x
  2. Step 2: Convert to fraction form
    5,291.17/7,940.40 = 2,372.74/x
  3. Step 3: Cross multiply
    5,291.17x = 7,940.40 × 2,372.74
  4. Step 4: Simplify right side
    5,291.17x = 18,840,504.70
  5. Step 5: Solve for x
    x = 18,840,504.70/5,291.17
  6. Step 6: Final answer
    x = 3,560.74

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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.