Home / 3,437.20-4,742.25-2,020.43

Finding the Fourth Proportional to 3,437.20, 4,742.25 and 2,020.43

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Solution

The fourth proportional to 3,437.20, 4,742.25 and 2,020.43 is: 2,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.20 : 4,742.25 = 2,020.43 : x
  2. Step 2: Convert to fraction form
    3,437.20/4,742.25 = 2,020.43/x
  3. Step 3: Cross multiply
    3,437.20x = 4,742.25 × 2,020.43
  4. Step 4: Simplify right side
    3,437.20x = 9,581,374.07
  5. Step 5: Solve for x
    x = 9,581,374.07/3,437.20
  6. Step 6: Final answer
    x = 2,787.56

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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.