Home / 3,731.49-5,148.22-2,158.47

Finding the Fourth Proportional to 3,731.49, 5,148.22 and 2,158.47

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Solution

The fourth proportional to 3,731.49, 5,148.22 and 2,158.47 is: 2,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.49 : 5,148.22 = 2,158.47 : x
  2. Step 2: Convert to fraction form
    3,731.49/5,148.22 = 2,158.47/x
  3. Step 3: Cross multiply
    3,731.49x = 5,148.22 × 2,158.47
  4. Step 4: Simplify right side
    3,731.49x = 11,112,278.42
  5. Step 5: Solve for x
    x = 11,112,278.42/3,731.49
  6. Step 6: Final answer
    x = 2,977.97

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1.5x scale

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.