Home / 6,621.18-9,926.91-3,160.86

Finding the Fourth Proportional to 6,621.18, 9,926.91 and 3,160.86

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Solution

The fourth proportional to 6,621.18, 9,926.91 and 3,160.86 is: 4,738.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.18 : 9,926.91 = 3,160.86 : x
  2. Step 2: Convert to fraction form
    6,621.18/9,926.91 = 3,160.86/x
  3. Step 3: Cross multiply
    6,621.18x = 9,926.91 × 3,160.86
  4. Step 4: Simplify right side
    6,621.18x = 31,377,572.74
  5. Step 5: Solve for x
    x = 31,377,572.74/6,621.18
  6. Step 6: Final answer
    x = 4,738.97

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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.