Home / 5,200.40-7,176.38-2,842.50

Finding the Fourth Proportional to 5,200.40, 7,176.38 and 2,842.50

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Solution

The fourth proportional to 5,200.40, 7,176.38 and 2,842.50 is: 3,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.40 : 7,176.38 = 2,842.50 : x
  2. Step 2: Convert to fraction form
    5,200.40/7,176.38 = 2,842.50/x
  3. Step 3: Cross multiply
    5,200.40x = 7,176.38 × 2,842.50
  4. Step 4: Simplify right side
    5,200.40x = 20,398,860.15
  5. Step 5: Solve for x
    x = 20,398,860.15/5,200.40
  6. Step 6: Final answer
    x = 3,922.56

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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.