Home / 3,520.32-4,832.28-3,118.56

Finding the Fourth Proportional to 3,520.32, 4,832.28 and 3,118.56

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Solution

The fourth proportional to 3,520.32, 4,832.28 and 3,118.56 is: 4,280.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.32 : 4,832.28 = 3,118.56 : x
  2. Step 2: Convert to fraction form
    3,520.32/4,832.28 = 3,118.56/x
  3. Step 3: Cross multiply
    3,520.32x = 4,832.28 × 3,118.56
  4. Step 4: Simplify right side
    3,520.32x = 15,069,755.12
  5. Step 5: Solve for x
    x = 15,069,755.12/3,520.32
  6. Step 6: Final answer
    x = 4,280.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.