Home / 2,979.97-4,472.01-1,338.36

Finding the Fourth Proportional to 2,979.97, 4,472.01 and 1,338.36

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Solution

The fourth proportional to 2,979.97, 4,472.01 and 1,338.36 is: 2,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.97 : 4,472.01 = 1,338.36 : x
  2. Step 2: Convert to fraction form
    2,979.97/4,472.01 = 1,338.36/x
  3. Step 3: Cross multiply
    2,979.97x = 4,472.01 × 1,338.36
  4. Step 4: Simplify right side
    2,979.97x = 5,985,159.30
  5. Step 5: Solve for x
    x = 5,985,159.30/2,979.97
  6. Step 6: Final answer
    x = 2,008.46

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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.