Home / 8,160.70-12,240.51-2,317.90

Finding the Fourth Proportional to 8,160.70, 12,240.51 and 2,317.90

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Solution

The fourth proportional to 8,160.70, 12,240.51 and 2,317.90 is: 3,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.70 : 12,240.51 = 2,317.90 : x
  2. Step 2: Convert to fraction form
    8,160.70/12,240.51 = 2,317.90/x
  3. Step 3: Cross multiply
    8,160.70x = 12,240.51 × 2,317.90
  4. Step 4: Simplify right side
    8,160.70x = 28,372,278.13
  5. Step 5: Solve for x
    x = 28,372,278.13/8,160.70
  6. Step 6: Final answer
    x = 3,476.70

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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.