Home / 5,214.85-7,190.85-3,722.16

Finding the Fourth Proportional to 5,214.85, 7,190.85 and 3,722.16

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Solution

The fourth proportional to 5,214.85, 7,190.85 and 3,722.16 is: 5,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.85 : 7,190.85 = 3,722.16 : x
  2. Step 2: Convert to fraction form
    5,214.85/7,190.85 = 3,722.16/x
  3. Step 3: Cross multiply
    5,214.85x = 7,190.85 × 3,722.16
  4. Step 4: Simplify right side
    5,214.85x = 26,765,458.28
  5. Step 5: Solve for x
    x = 26,765,458.28/5,214.85
  6. Step 6: Final answer
    x = 5,132.55

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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.