Home / 4,113.72-6,170.85-1,515.78

Finding the Fourth Proportional to 4,113.72, 6,170.85 and 1,515.78

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Solution

The fourth proportional to 4,113.72, 6,170.85 and 1,515.78 is: 2,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,113.72 : 6,170.85 = 1,515.78 : x
  2. Step 2: Convert to fraction form
    4,113.72/6,170.85 = 1,515.78/x
  3. Step 3: Cross multiply
    4,113.72x = 6,170.85 × 1,515.78
  4. Step 4: Simplify right side
    4,113.72x = 9,353,651.01
  5. Step 5: Solve for x
    x = 9,353,651.01/4,113.72
  6. Step 6: Final answer
    x = 2,273.77

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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.