Home / 5,242.20-7,856.31-1,951.98

Finding the Fourth Proportional to 5,242.20, 7,856.31 and 1,951.98

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Solution

The fourth proportional to 5,242.20, 7,856.31 and 1,951.98 is: 2,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.20 : 7,856.31 = 1,951.98 : x
  2. Step 2: Convert to fraction form
    5,242.20/7,856.31 = 1,951.98/x
  3. Step 3: Cross multiply
    5,242.20x = 7,856.31 × 1,951.98
  4. Step 4: Simplify right side
    5,242.20x = 15,335,359.99
  5. Step 5: Solve for x
    x = 15,335,359.99/5,242.20
  6. Step 6: Final answer
    x = 2,925.37

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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.