Home / 3,490.43-5,231.18-1,637.45

Finding the Fourth Proportional to 3,490.43, 5,231.18 and 1,637.45

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Solution

The fourth proportional to 3,490.43, 5,231.18 and 1,637.45 is: 2,454.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.43 : 5,231.18 = 1,637.45 : x
  2. Step 2: Convert to fraction form
    3,490.43/5,231.18 = 1,637.45/x
  3. Step 3: Cross multiply
    3,490.43x = 5,231.18 × 1,637.45
  4. Step 4: Simplify right side
    3,490.43x = 8,565,793.25
  5. Step 5: Solve for x
    x = 8,565,793.25/3,490.43
  6. Step 6: Final answer
    x = 2,454.08

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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.