Home / 5,229.39-7,216.70-2,871.57

Finding the Fourth Proportional to 5,229.39, 7,216.70 and 2,871.57

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Solution

The fourth proportional to 5,229.39, 7,216.70 and 2,871.57 is: 3,962.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.39 : 7,216.70 = 2,871.57 : x
  2. Step 2: Convert to fraction form
    5,229.39/7,216.70 = 2,871.57/x
  3. Step 3: Cross multiply
    5,229.39x = 7,216.70 × 2,871.57
  4. Step 4: Simplify right side
    5,229.39x = 20,723,244.86
  5. Step 5: Solve for x
    x = 20,723,244.86/5,229.39
  6. Step 6: Final answer
    x = 3,962.84

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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.