Home / 5,191.43-7,156.76-3,200.65

Finding the Fourth Proportional to 5,191.43, 7,156.76 and 3,200.65

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Solution

The fourth proportional to 5,191.43, 7,156.76 and 3,200.65 is: 4,412.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.43 : 7,156.76 = 3,200.65 : x
  2. Step 2: Convert to fraction form
    5,191.43/7,156.76 = 3,200.65/x
  3. Step 3: Cross multiply
    5,191.43x = 7,156.76 × 3,200.65
  4. Step 4: Simplify right side
    5,191.43x = 22,906,250.00
  5. Step 5: Solve for x
    x = 22,906,250.00/5,191.43
  6. Step 6: Final answer
    x = 4,412.32

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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.