Home / 5,241.40-7,855.62-2,642.92

Finding the Fourth Proportional to 5,241.40, 7,855.62 and 2,642.92

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Solution

The fourth proportional to 5,241.40, 7,855.62 and 2,642.92 is: 3,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.40 : 7,855.62 = 2,642.92 : x
  2. Step 2: Convert to fraction form
    5,241.40/7,855.62 = 2,642.92/x
  3. Step 3: Cross multiply
    5,241.40x = 7,855.62 × 2,642.92
  4. Step 4: Simplify right side
    5,241.40x = 20,761,775.21
  5. Step 5: Solve for x
    x = 20,761,775.21/5,241.40
  6. Step 6: Final answer
    x = 3,961.11

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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.