Home / 3,151.46-4,724.12-1,507.56

Finding the Fourth Proportional to 3,151.46, 4,724.12 and 1,507.56

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Solution

The fourth proportional to 3,151.46, 4,724.12 and 1,507.56 is: 2,259.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.46 : 4,724.12 = 1,507.56 : x
  2. Step 2: Convert to fraction form
    3,151.46/4,724.12 = 1,507.56/x
  3. Step 3: Cross multiply
    3,151.46x = 4,724.12 × 1,507.56
  4. Step 4: Simplify right side
    3,151.46x = 7,121,894.35
  5. Step 5: Solve for x
    x = 7,121,894.35/3,151.46
  6. Step 6: Final answer
    x = 2,259.87

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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.