Home / 5,251.84-7,882.62-2,656.60

Finding the Fourth Proportional to 5,251.84, 7,882.62 and 2,656.60

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Solution

The fourth proportional to 5,251.84, 7,882.62 and 2,656.60 is: 3,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.84 : 7,882.62 = 2,656.60 : x
  2. Step 2: Convert to fraction form
    5,251.84/7,882.62 = 2,656.60/x
  3. Step 3: Cross multiply
    5,251.84x = 7,882.62 × 2,656.60
  4. Step 4: Simplify right side
    5,251.84x = 20,940,968.29
  5. Step 5: Solve for x
    x = 20,940,968.29/5,251.84
  6. Step 6: Final answer
    x = 3,987.36

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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.