Home / 5,250.78-7,876.44-1,962.72

Finding the Fourth Proportional to 5,250.78, 7,876.44 and 1,962.72

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Solution

The fourth proportional to 5,250.78, 7,876.44 and 1,962.72 is: 2,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.78 : 7,876.44 = 1,962.72 : x
  2. Step 2: Convert to fraction form
    5,250.78/7,876.44 = 1,962.72/x
  3. Step 3: Cross multiply
    5,250.78x = 7,876.44 × 1,962.72
  4. Step 4: Simplify right side
    5,250.78x = 15,459,246.32
  5. Step 5: Solve for x
    x = 15,459,246.32/5,250.78
  6. Step 6: Final answer
    x = 2,944.18

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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.