Home / 4,275.89-6,404.83-2,189.55

Finding the Fourth Proportional to 4,275.89, 6,404.83 and 2,189.55

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Solution

The fourth proportional to 4,275.89, 6,404.83 and 2,189.55 is: 3,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,275.89 : 6,404.83 = 2,189.55 : x
  2. Step 2: Convert to fraction form
    4,275.89/6,404.83 = 2,189.55/x
  3. Step 3: Cross multiply
    4,275.89x = 6,404.83 × 2,189.55
  4. Step 4: Simplify right side
    4,275.89x = 14,023,684.58
  5. Step 5: Solve for x
    x = 14,023,684.58/4,275.89
  6. Step 6: Final answer
    x = 3,279.72

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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.