Home / 4,082.20-6,124.92-1,309.30

Finding the Fourth Proportional to 4,082.20, 6,124.92 and 1,309.30

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Solution

The fourth proportional to 4,082.20, 6,124.92 and 1,309.30 is: 1,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,082.20 : 6,124.92 = 1,309.30 : x
  2. Step 2: Convert to fraction form
    4,082.20/6,124.92 = 1,309.30/x
  3. Step 3: Cross multiply
    4,082.20x = 6,124.92 × 1,309.30
  4. Step 4: Simplify right side
    4,082.20x = 8,019,357.76
  5. Step 5: Solve for x
    x = 8,019,357.76/4,082.20
  6. Step 6: Final answer
    x = 1,964.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.