Home / 6,815.96-10,223.92-3,117.20

Finding the Fourth Proportional to 6,815.96, 10,223.92 and 3,117.20

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Solution

The fourth proportional to 6,815.96, 10,223.92 and 3,117.20 is: 4,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.96 : 10,223.92 = 3,117.20 : x
  2. Step 2: Convert to fraction form
    6,815.96/10,223.92 = 3,117.20/x
  3. Step 3: Cross multiply
    6,815.96x = 10,223.92 × 3,117.20
  4. Step 4: Simplify right side
    6,815.96x = 31,870,003.42
  5. Step 5: Solve for x
    x = 31,870,003.42/6,815.96
  6. Step 6: Final answer
    x = 4,675.79

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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.