Home / 5,240.20-7,857.60-1,951.60

Finding the Fourth Proportional to 5,240.20, 7,857.60 and 1,951.60

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Solution

The fourth proportional to 5,240.20, 7,857.60 and 1,951.60 is: 2,926.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.20 : 7,857.60 = 1,951.60 : x
  2. Step 2: Convert to fraction form
    5,240.20/7,857.60 = 1,951.60/x
  3. Step 3: Cross multiply
    5,240.20x = 7,857.60 × 1,951.60
  4. Step 4: Simplify right side
    5,240.20x = 15,334,892.16
  5. Step 5: Solve for x
    x = 15,334,892.16/5,240.20
  6. Step 6: Final answer
    x = 2,926.39

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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.