Home / 3,115.55-4,663.74-2,672.69

Finding the Fourth Proportional to 3,115.55, 4,663.74 and 2,672.69

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Solution

The fourth proportional to 3,115.55, 4,663.74 and 2,672.69 is: 4,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.55 : 4,663.74 = 2,672.69 : x
  2. Step 2: Convert to fraction form
    3,115.55/4,663.74 = 2,672.69/x
  3. Step 3: Cross multiply
    3,115.55x = 4,663.74 × 2,672.69
  4. Step 4: Simplify right side
    3,115.55x = 12,464,707.94
  5. Step 5: Solve for x
    x = 12,464,707.94/3,115.55
  6. Step 6: Final answer
    x = 4,000.81

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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.