Home / 4,760.31-7,135.56-1,988.61

Finding the Fourth Proportional to 4,760.31, 7,135.56 and 1,988.61

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Solution

The fourth proportional to 4,760.31, 7,135.56 and 1,988.61 is: 2,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,760.31 : 7,135.56 = 1,988.61 : x
  2. Step 2: Convert to fraction form
    4,760.31/7,135.56 = 1,988.61/x
  3. Step 3: Cross multiply
    4,760.31x = 7,135.56 × 1,988.61
  4. Step 4: Simplify right side
    4,760.31x = 14,189,845.97
  5. Step 5: Solve for x
    x = 14,189,845.97/4,760.31
  6. Step 6: Final answer
    x = 2,980.87

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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.