Home / 5,230.68-7,218.32-2,872.76

Finding the Fourth Proportional to 5,230.68, 7,218.32 and 2,872.76

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Solution

The fourth proportional to 5,230.68, 7,218.32 and 2,872.76 is: 3,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.68 : 7,218.32 = 2,872.76 : x
  2. Step 2: Convert to fraction form
    5,230.68/7,218.32 = 2,872.76/x
  3. Step 3: Cross multiply
    5,230.68x = 7,218.32 × 2,872.76
  4. Step 4: Simplify right side
    5,230.68x = 20,736,500.96
  5. Step 5: Solve for x
    x = 20,736,500.96/5,230.68
  6. Step 6: Final answer
    x = 3,964.40

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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.