Home / 3,718.31-5,129.87-2,373.98

Finding the Fourth Proportional to 3,718.31, 5,129.87 and 2,373.98

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Solution

The fourth proportional to 3,718.31, 5,129.87 and 2,373.98 is: 3,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.31 : 5,129.87 = 2,373.98 : x
  2. Step 2: Convert to fraction form
    3,718.31/5,129.87 = 2,373.98/x
  3. Step 3: Cross multiply
    3,718.31x = 5,129.87 × 2,373.98
  4. Step 4: Simplify right side
    3,718.31x = 12,178,171.26
  5. Step 5: Solve for x
    x = 12,178,171.26/3,718.31
  6. Step 6: Final answer
    x = 3,275.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.