Home / 5,180.31-7,759.47-4,188.87

Finding the Fourth Proportional to 5,180.31, 7,759.47 and 4,188.87

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Solution

The fourth proportional to 5,180.31, 7,759.47 and 4,188.87 is: 6,274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.31 : 7,759.47 = 4,188.87 : x
  2. Step 2: Convert to fraction form
    5,180.31/7,759.47 = 4,188.87/x
  3. Step 3: Cross multiply
    5,180.31x = 7,759.47 × 4,188.87
  4. Step 4: Simplify right side
    5,180.31x = 32,503,411.10
  5. Step 5: Solve for x
    x = 32,503,411.10/5,180.31
  6. Step 6: Final answer
    x = 6,274.41

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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.