Home / 5,677.32-8,517.41-1,979.58

Finding the Fourth Proportional to 5,677.32, 8,517.41 and 1,979.58

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Solution

The fourth proportional to 5,677.32, 8,517.41 and 1,979.58 is: 2,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.32 : 8,517.41 = 1,979.58 : x
  2. Step 2: Convert to fraction form
    5,677.32/8,517.41 = 1,979.58/x
  3. Step 3: Cross multiply
    5,677.32x = 8,517.41 × 1,979.58
  4. Step 4: Simplify right side
    5,677.32x = 16,860,923.95
  5. Step 5: Solve for x
    x = 16,860,923.95/5,677.32
  6. Step 6: Final answer
    x = 2,969.87

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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.