Home / 8,458.31-12,684.33-2,910.12

Finding the Fourth Proportional to 8,458.31, 12,684.33 and 2,910.12

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Solution

The fourth proportional to 8,458.31, 12,684.33 and 2,910.12 is: 4,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.31 : 12,684.33 = 2,910.12 : x
  2. Step 2: Convert to fraction form
    8,458.31/12,684.33 = 2,910.12/x
  3. Step 3: Cross multiply
    8,458.31x = 12,684.33 × 2,910.12
  4. Step 4: Simplify right side
    8,458.31x = 36,912,922.42
  5. Step 5: Solve for x
    x = 36,912,922.42/8,458.31
  6. Step 6: Final answer
    x = 4,364.10

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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.