Home / 3,438.30-5,158.66-1,490.24

Finding the Fourth Proportional to 3,438.30, 5,158.66 and 1,490.24

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Solution

The fourth proportional to 3,438.30, 5,158.66 and 1,490.24 is: 2,235.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.30 : 5,158.66 = 1,490.24 : x
  2. Step 2: Convert to fraction form
    3,438.30/5,158.66 = 1,490.24/x
  3. Step 3: Cross multiply
    3,438.30x = 5,158.66 × 1,490.24
  4. Step 4: Simplify right side
    3,438.30x = 7,687,641.48
  5. Step 5: Solve for x
    x = 7,687,641.48/3,438.30
  6. Step 6: Final answer
    x = 2,235.88

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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.