Home / 3,718.80-5,132.16-2,147.76

Finding the Fourth Proportional to 3,718.80, 5,132.16 and 2,147.76

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Solution

The fourth proportional to 3,718.80, 5,132.16 and 2,147.76 is: 2,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.80 : 5,132.16 = 2,147.76 : x
  2. Step 2: Convert to fraction form
    3,718.80/5,132.16 = 2,147.76/x
  3. Step 3: Cross multiply
    3,718.80x = 5,132.16 × 2,147.76
  4. Step 4: Simplify right side
    3,718.80x = 11,022,647.96
  5. Step 5: Solve for x
    x = 11,022,647.96/3,718.80
  6. Step 6: Final answer
    x = 2,964.03

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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.