Home / 3,760.56-5,187.12-2,974.32

Finding the Fourth Proportional to 3,760.56, 5,187.12 and 2,974.32

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Solution

The fourth proportional to 3,760.56, 5,187.12 and 2,974.32 is: 4,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.56 : 5,187.12 = 2,974.32 : x
  2. Step 2: Convert to fraction form
    3,760.56/5,187.12 = 2,974.32/x
  3. Step 3: Cross multiply
    3,760.56x = 5,187.12 × 2,974.32
  4. Step 4: Simplify right side
    3,760.56x = 15,428,154.76
  5. Step 5: Solve for x
    x = 15,428,154.76/3,760.56
  6. Step 6: Final answer
    x = 4,102.62

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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.