Home / 4,750.31-7,122.40-2,560.61

Finding the Fourth Proportional to 4,750.31, 7,122.40 and 2,560.61

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Solution

The fourth proportional to 4,750.31, 7,122.40 and 2,560.61 is: 3,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.31 : 7,122.40 = 2,560.61 : x
  2. Step 2: Convert to fraction form
    4,750.31/7,122.40 = 2,560.61/x
  3. Step 3: Cross multiply
    4,750.31x = 7,122.40 × 2,560.61
  4. Step 4: Simplify right side
    4,750.31x = 18,237,700.07
  5. Step 5: Solve for x
    x = 18,237,700.07/4,750.31
  6. Step 6: Final answer
    x = 3,839.26

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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.