Home / 3,440.30-4,747.28-1,947.92

Finding the Fourth Proportional to 3,440.30, 4,747.28 and 1,947.92

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Solution

The fourth proportional to 3,440.30, 4,747.28 and 1,947.92 is: 2,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.30 : 4,747.28 = 1,947.92 : x
  2. Step 2: Convert to fraction form
    3,440.30/4,747.28 = 1,947.92/x
  3. Step 3: Cross multiply
    3,440.30x = 4,747.28 × 1,947.92
  4. Step 4: Simplify right side
    3,440.30x = 9,247,338.40
  5. Step 5: Solve for x
    x = 9,247,338.40/3,440.30
  6. Step 6: Final answer
    x = 2,687.95

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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.