Home / 5,677.32-8,514.84-1,979.72

Finding the Fourth Proportional to 5,677.32, 8,514.84 and 1,979.72

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Solution

The fourth proportional to 5,677.32, 8,514.84 and 1,979.72 is: 2,969.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.32 : 8,514.84 = 1,979.72 : x
  2. Step 2: Convert to fraction form
    5,677.32/8,514.84 = 1,979.72/x
  3. Step 3: Cross multiply
    5,677.32x = 8,514.84 × 1,979.72
  4. Step 4: Simplify right side
    5,677.32x = 16,856,999.04
  5. Step 5: Solve for x
    x = 16,856,999.04/5,677.32
  6. Step 6: Final answer
    x = 2,969.18

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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.