Home / 5,081.32-7,621.98-2,158.84

Finding the Fourth Proportional to 5,081.32, 7,621.98 and 2,158.84

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Solution

The fourth proportional to 5,081.32, 7,621.98 and 2,158.84 is: 3,238.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.32 : 7,621.98 = 2,158.84 : x
  2. Step 2: Convert to fraction form
    5,081.32/7,621.98 = 2,158.84/x
  3. Step 3: Cross multiply
    5,081.32x = 7,621.98 × 2,158.84
  4. Step 4: Simplify right side
    5,081.32x = 16,454,635.30
  5. Step 5: Solve for x
    x = 16,454,635.30/5,081.32
  6. Step 6: Final answer
    x = 3,238.26

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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.