Home / 5,115.34-7,672.95-1,367.12

Finding the Fourth Proportional to 5,115.34, 7,672.95 and 1,367.12

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Solution

The fourth proportional to 5,115.34, 7,672.95 and 1,367.12 is: 2,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.34 : 7,672.95 = 1,367.12 : x
  2. Step 2: Convert to fraction form
    5,115.34/7,672.95 = 1,367.12/x
  3. Step 3: Cross multiply
    5,115.34x = 7,672.95 × 1,367.12
  4. Step 4: Simplify right side
    5,115.34x = 10,489,843.40
  5. Step 5: Solve for x
    x = 10,489,843.40/5,115.34
  6. Step 6: Final answer
    x = 2,050.66

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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.