Home / 5,559.12-8,342.28-2,640.72

Finding the Fourth Proportional to 5,559.12, 8,342.28 and 2,640.72

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Solution

The fourth proportional to 5,559.12, 8,342.28 and 2,640.72 is: 3,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,559.12 : 8,342.28 = 2,640.72 : x
  2. Step 2: Convert to fraction form
    5,559.12/8,342.28 = 2,640.72/x
  3. Step 3: Cross multiply
    5,559.12x = 8,342.28 × 2,640.72
  4. Step 4: Simplify right side
    5,559.12x = 22,029,625.64
  5. Step 5: Solve for x
    x = 22,029,625.64/5,559.12
  6. Step 6: Final answer
    x = 3,962.79

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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.