Home / 5,197.01-7,171.59-2,839.10

Finding the Fourth Proportional to 5,197.01, 7,171.59 and 2,839.10

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Solution

The fourth proportional to 5,197.01, 7,171.59 and 2,839.10 is: 3,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.01 : 7,171.59 = 2,839.10 : x
  2. Step 2: Convert to fraction form
    5,197.01/7,171.59 = 2,839.10/x
  3. Step 3: Cross multiply
    5,197.01x = 7,171.59 × 2,839.10
  4. Step 4: Simplify right side
    5,197.01x = 20,360,861.17
  5. Step 5: Solve for x
    x = 20,360,861.17/5,197.01
  6. Step 6: Final answer
    x = 3,917.80

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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.