Home / 2,439.27-3,366.20-1,320.22

Finding the Fourth Proportional to 2,439.27, 3,366.20 and 1,320.22

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Solution

The fourth proportional to 2,439.27, 3,366.20 and 1,320.22 is: 1,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.27 : 3,366.20 = 1,320.22 : x
  2. Step 2: Convert to fraction form
    2,439.27/3,366.20 = 1,320.22/x
  3. Step 3: Cross multiply
    2,439.27x = 3,366.20 × 1,320.22
  4. Step 4: Simplify right side
    2,439.27x = 4,444,123.29
  5. Step 5: Solve for x
    x = 4,444,123.29/2,439.27
  6. Step 6: Final answer
    x = 1,821.91

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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.