Home / 3,320.23-4,581.08-2,139.88

Finding the Fourth Proportional to 3,320.23, 4,581.08 and 2,139.88

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Solution

The fourth proportional to 3,320.23, 4,581.08 and 2,139.88 is: 2,952.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.23 : 4,581.08 = 2,139.88 : x
  2. Step 2: Convert to fraction form
    3,320.23/4,581.08 = 2,139.88/x
  3. Step 3: Cross multiply
    3,320.23x = 4,581.08 × 2,139.88
  4. Step 4: Simplify right side
    3,320.23x = 9,802,938.57
  5. Step 5: Solve for x
    x = 9,802,938.57/3,320.23
  6. Step 6: Final answer
    x = 2,952.49

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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.