Home / 6,991.38-10,488.63-2,312.85

Finding the Fourth Proportional to 6,991.38, 10,488.63 and 2,312.85

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Solution

The fourth proportional to 6,991.38, 10,488.63 and 2,312.85 is: 3,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.38 : 10,488.63 = 2,312.85 : x
  2. Step 2: Convert to fraction form
    6,991.38/10,488.63 = 2,312.85/x
  3. Step 3: Cross multiply
    6,991.38x = 10,488.63 × 2,312.85
  4. Step 4: Simplify right side
    6,991.38x = 24,258,627.90
  5. Step 5: Solve for x
    x = 24,258,627.90/6,991.38
  6. Step 6: Final answer
    x = 3,469.79

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1.5x scale

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.