Home / 3,155.28-4,731.12-1,074.24

Finding the Fourth Proportional to 3,155.28, 4,731.12 and 1,074.24

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Solution

The fourth proportional to 3,155.28, 4,731.12 and 1,074.24 is: 1,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.28 : 4,731.12 = 1,074.24 : x
  2. Step 2: Convert to fraction form
    3,155.28/4,731.12 = 1,074.24/x
  3. Step 3: Cross multiply
    3,155.28x = 4,731.12 × 1,074.24
  4. Step 4: Simplify right side
    3,155.28x = 5,082,358.35
  5. Step 5: Solve for x
    x = 5,082,358.35/3,155.28
  6. Step 6: Final answer
    x = 1,610.75

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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.