Home / 3,718.44-5,127.30-2,390.31

Finding the Fourth Proportional to 3,718.44, 5,127.30 and 2,390.31

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Solution

The fourth proportional to 3,718.44, 5,127.30 and 2,390.31 is: 3,295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.44 : 5,127.30 = 2,390.31 : x
  2. Step 2: Convert to fraction form
    3,718.44/5,127.30 = 2,390.31/x
  3. Step 3: Cross multiply
    3,718.44x = 5,127.30 × 2,390.31
  4. Step 4: Simplify right side
    3,718.44x = 12,255,836.46
  5. Step 5: Solve for x
    x = 12,255,836.46/3,718.44
  6. Step 6: Final answer
    x = 3,295.96

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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.