Home / 5,200.66-7,176.91-2,842.80

Finding the Fourth Proportional to 5,200.66, 7,176.91 and 2,842.80

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Solution

The fourth proportional to 5,200.66, 7,176.91 and 2,842.80 is: 3,923.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.66 : 7,176.91 = 2,842.80 : x
  2. Step 2: Convert to fraction form
    5,200.66/7,176.91 = 2,842.80/x
  3. Step 3: Cross multiply
    5,200.66x = 7,176.91 × 2,842.80
  4. Step 4: Simplify right side
    5,200.66x = 20,402,483.86
  5. Step 5: Solve for x
    x = 20,402,483.86/5,200.66
  6. Step 6: Final answer
    x = 3,923.06

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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.