Home / 5,216.62-7,199.01-3,120.34

Finding the Fourth Proportional to 5,216.62, 7,199.01 and 3,120.34

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Solution

The fourth proportional to 5,216.62, 7,199.01 and 3,120.34 is: 4,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.62 : 7,199.01 = 3,120.34 : x
  2. Step 2: Convert to fraction form
    5,216.62/7,199.01 = 3,120.34/x
  3. Step 3: Cross multiply
    5,216.62x = 7,199.01 × 3,120.34
  4. Step 4: Simplify right side
    5,216.62x = 22,463,358.86
  5. Step 5: Solve for x
    x = 22,463,358.86/5,216.62
  6. Step 6: Final answer
    x = 4,306.11

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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.