Home / 5,141.42-7,710.55-2,179.80

Finding the Fourth Proportional to 5,141.42, 7,710.55 and 2,179.80

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Solution

The fourth proportional to 5,141.42, 7,710.55 and 2,179.80 is: 3,269.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.42 : 7,710.55 = 2,179.80 : x
  2. Step 2: Convert to fraction form
    5,141.42/7,710.55 = 2,179.80/x
  3. Step 3: Cross multiply
    5,141.42x = 7,710.55 × 2,179.80
  4. Step 4: Simplify right side
    5,141.42x = 16,807,479.26
  5. Step 5: Solve for x
    x = 16,807,479.26/5,141.42
  6. Step 6: Final answer
    x = 3,269.04

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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.