Home / 5,679.12-8,520.06-2,169.30

Finding the Fourth Proportional to 5,679.12, 8,520.06 and 2,169.30

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Solution

The fourth proportional to 5,679.12, 8,520.06 and 2,169.30 is: 3,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.12 : 8,520.06 = 2,169.30 : x
  2. Step 2: Convert to fraction form
    5,679.12/8,520.06 = 2,169.30/x
  3. Step 3: Cross multiply
    5,679.12x = 8,520.06 × 2,169.30
  4. Step 4: Simplify right side
    5,679.12x = 18,482,566.16
  5. Step 5: Solve for x
    x = 18,482,566.16/5,679.12
  6. Step 6: Final answer
    x = 3,254.48

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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.