Home / 4,387.80-6,574.92-2,921.64

Finding the Fourth Proportional to 4,387.80, 6,574.92 and 2,921.64

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Solution

The fourth proportional to 4,387.80, 6,574.92 and 2,921.64 is: 4,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387.80 : 6,574.92 = 2,921.64 : x
  2. Step 2: Convert to fraction form
    4,387.80/6,574.92 = 2,921.64/x
  3. Step 3: Cross multiply
    4,387.80x = 6,574.92 × 2,921.64
  4. Step 4: Simplify right side
    4,387.80x = 19,209,549.27
  5. Step 5: Solve for x
    x = 19,209,549.27/4,387.80
  6. Step 6: Final answer
    x = 4,377.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.