Home / 7,638.66-10,540.98-4,281.84

Finding the Fourth Proportional to 7,638.66, 10,540.98 and 4,281.84

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Solution

The fourth proportional to 7,638.66, 10,540.98 and 4,281.84 is: 5,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.66 : 10,540.98 = 4,281.84 : x
  2. Step 2: Convert to fraction form
    7,638.66/10,540.98 = 4,281.84/x
  3. Step 3: Cross multiply
    7,638.66x = 10,540.98 × 4,281.84
  4. Step 4: Simplify right side
    7,638.66x = 45,134,789.80
  5. Step 5: Solve for x
    x = 45,134,789.80/7,638.66
  6. Step 6: Final answer
    x = 5,908.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.