Home / 5,225.40-7,843.44-2,759.76

Finding the Fourth Proportional to 5,225.40, 7,843.44 and 2,759.76

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Solution

The fourth proportional to 5,225.40, 7,843.44 and 2,759.76 is: 4,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.40 : 7,843.44 = 2,759.76 : x
  2. Step 2: Convert to fraction form
    5,225.40/7,843.44 = 2,759.76/x
  3. Step 3: Cross multiply
    5,225.40x = 7,843.44 × 2,759.76
  4. Step 4: Simplify right side
    5,225.40x = 21,646,011.97
  5. Step 5: Solve for x
    x = 21,646,011.97/5,225.40
  6. Step 6: Final answer
    x = 4,142.46

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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.