Home / 5,120.08-7,065.74-2,882

Finding the Fourth Proportional to 5,120.08, 7,065.74 and 2,882

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Solution

The fourth proportional to 5,120.08, 7,065.74 and 2,882 is: 3,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.08 : 7,065.74 = 2,882 : x
  2. Step 2: Convert to fraction form
    5,120.08/7,065.74 = 2,882/x
  3. Step 3: Cross multiply
    5,120.08x = 7,065.74 × 2,882
  4. Step 4: Simplify right side
    5,120.08x = 20,363,462.68
  5. Step 5: Solve for x
    x = 20,363,462.68/5,120.08
  6. Step 6: Final answer
    x = 3,977.18

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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.