Home / 3,718.78-5,127.51-2,392.54

Finding the Fourth Proportional to 3,718.78, 5,127.51 and 2,392.54

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Solution

The fourth proportional to 3,718.78, 5,127.51 and 2,392.54 is: 3,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.78 : 5,127.51 = 2,392.54 : x
  2. Step 2: Convert to fraction form
    3,718.78/5,127.51 = 2,392.54/x
  3. Step 3: Cross multiply
    3,718.78x = 5,127.51 × 2,392.54
  4. Step 4: Simplify right side
    3,718.78x = 12,267,772.78
  5. Step 5: Solve for x
    x = 12,267,772.78/3,718.78
  6. Step 6: Final answer
    x = 3,298.87

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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.