Home / 7,170.42-10,750.92-2,788.32

Finding the Fourth Proportional to 7,170.42, 10,750.92 and 2,788.32

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Solution

The fourth proportional to 7,170.42, 10,750.92 and 2,788.32 is: 4,180.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.42 : 10,750.92 = 2,788.32 : x
  2. Step 2: Convert to fraction form
    7,170.42/10,750.92 = 2,788.32/x
  3. Step 3: Cross multiply
    7,170.42x = 10,750.92 × 2,788.32
  4. Step 4: Simplify right side
    7,170.42x = 29,977,005.25
  5. Step 5: Solve for x
    x = 29,977,005.25/7,170.42
  6. Step 6: Final answer
    x = 4,180.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.