Home / 5,714.20-8,570.72-3,877.12

Finding the Fourth Proportional to 5,714.20, 8,570.72 and 3,877.12

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Solution

The fourth proportional to 5,714.20, 8,570.72 and 3,877.12 is: 5,815.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,714.20 : 8,570.72 = 3,877.12 : x
  2. Step 2: Convert to fraction form
    5,714.20/8,570.72 = 3,877.12/x
  3. Step 3: Cross multiply
    5,714.20x = 8,570.72 × 3,877.12
  4. Step 4: Simplify right side
    5,714.20x = 33,229,709.93
  5. Step 5: Solve for x
    x = 33,229,709.93/5,714.20
  6. Step 6: Final answer
    x = 5,815.29

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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.