Home / 3,439.20-4,746.12-1,947.12

Finding the Fourth Proportional to 3,439.20, 4,746.12 and 1,947.12

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Solution

The fourth proportional to 3,439.20, 4,746.12 and 1,947.12 is: 2,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.20 : 4,746.12 = 1,947.12 : x
  2. Step 2: Convert to fraction form
    3,439.20/4,746.12 = 1,947.12/x
  3. Step 3: Cross multiply
    3,439.20x = 4,746.12 × 1,947.12
  4. Step 4: Simplify right side
    3,439.20x = 9,241,265.17
  5. Step 5: Solve for x
    x = 9,241,265.17/3,439.20
  6. Step 6: Final answer
    x = 2,687.04

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1.5x scale

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.