Home / 5,141.32-7,711.36-2,180.90

Finding the Fourth Proportional to 5,141.32, 7,711.36 and 2,180.90

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Solution

The fourth proportional to 5,141.32, 7,711.36 and 2,180.90 is: 3,271.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.32 : 7,711.36 = 2,180.90 : x
  2. Step 2: Convert to fraction form
    5,141.32/7,711.36 = 2,180.90/x
  3. Step 3: Cross multiply
    5,141.32x = 7,711.36 × 2,180.90
  4. Step 4: Simplify right side
    5,141.32x = 16,817,705.02
  5. Step 5: Solve for x
    x = 16,817,705.02/5,141.32
  6. Step 6: Final answer
    x = 3,271.09

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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.