Home / 3,206.30-4,423.92-1,947.32

Finding the Fourth Proportional to 3,206.30, 4,423.92 and 1,947.32

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Solution

The fourth proportional to 3,206.30, 4,423.92 and 1,947.32 is: 2,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.30 : 4,423.92 = 1,947.32 : x
  2. Step 2: Convert to fraction form
    3,206.30/4,423.92 = 1,947.32/x
  3. Step 3: Cross multiply
    3,206.30x = 4,423.92 × 1,947.32
  4. Step 4: Simplify right side
    3,206.30x = 8,614,765.77
  5. Step 5: Solve for x
    x = 8,614,765.77/3,206.30
  6. Step 6: Final answer
    x = 2,686.83

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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.