Home / 3,155.12-4,354.08-1,757.92

Finding the Fourth Proportional to 3,155.12, 4,354.08 and 1,757.92

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Solution

The fourth proportional to 3,155.12, 4,354.08 and 1,757.92 is: 2,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.12 : 4,354.08 = 1,757.92 : x
  2. Step 2: Convert to fraction form
    3,155.12/4,354.08 = 1,757.92/x
  3. Step 3: Cross multiply
    3,155.12x = 4,354.08 × 1,757.92
  4. Step 4: Simplify right side
    3,155.12x = 7,654,124.31
  5. Step 5: Solve for x
    x = 7,654,124.31/3,155.12
  6. Step 6: Final answer
    x = 2,425.94

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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.