Home / 5,182.78-7,152.20-2,824.90

Finding the Fourth Proportional to 5,182.78, 7,152.20 and 2,824.90

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Solution

The fourth proportional to 5,182.78, 7,152.20 and 2,824.90 is: 3,898.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.78 : 7,152.20 = 2,824.90 : x
  2. Step 2: Convert to fraction form
    5,182.78/7,152.20 = 2,824.90/x
  3. Step 3: Cross multiply
    5,182.78x = 7,152.20 × 2,824.90
  4. Step 4: Simplify right side
    5,182.78x = 20,204,214.02
  5. Step 5: Solve for x
    x = 20,204,214.02/5,182.78
  6. Step 6: Final answer
    x = 3,898.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.