Home / 2,439.97-3,366.05-1,555.22

Finding the Fourth Proportional to 2,439.97, 3,366.05 and 1,555.22

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Solution

The fourth proportional to 2,439.97, 3,366.05 and 1,555.22 is: 2,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.97 : 3,366.05 = 1,555.22 : x
  2. Step 2: Convert to fraction form
    2,439.97/3,366.05 = 1,555.22/x
  3. Step 3: Cross multiply
    2,439.97x = 3,366.05 × 1,555.22
  4. Step 4: Simplify right side
    2,439.97x = 5,234,948.28
  5. Step 5: Solve for x
    x = 5,234,948.28/2,439.97
  6. Step 6: Final answer
    x = 2,145.50

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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.