Home / 3,648.30-5,032.89-3,150.78

Finding the Fourth Proportional to 3,648.30, 5,032.89 and 3,150.78

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Solution

The fourth proportional to 3,648.30, 5,032.89 and 3,150.78 is: 4,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.30 : 5,032.89 = 3,150.78 : x
  2. Step 2: Convert to fraction form
    3,648.30/5,032.89 = 3,150.78/x
  3. Step 3: Cross multiply
    3,648.30x = 5,032.89 × 3,150.78
  4. Step 4: Simplify right side
    3,648.30x = 15,857,529.15
  5. Step 5: Solve for x
    x = 15,857,529.15/3,648.30
  6. Step 6: Final answer
    x = 4,346.55

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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.