Home / 3,155.42-4,353.46-1,757.90

Finding the Fourth Proportional to 3,155.42, 4,353.46 and 1,757.90

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Solution

The fourth proportional to 3,155.42, 4,353.46 and 1,757.90 is: 2,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.42 : 4,353.46 = 1,757.90 : x
  2. Step 2: Convert to fraction form
    3,155.42/4,353.46 = 1,757.90/x
  3. Step 3: Cross multiply
    3,155.42x = 4,353.46 × 1,757.90
  4. Step 4: Simplify right side
    3,155.42x = 7,652,921.17
  5. Step 5: Solve for x
    x = 7,652,921.17/3,155.42
  6. Step 6: Final answer
    x = 2,425.33

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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.