Home / 6,220.18-8,581.22-4,120.66

Finding the Fourth Proportional to 6,220.18, 8,581.22 and 4,120.66

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Solution

The fourth proportional to 6,220.18, 8,581.22 and 4,120.66 is: 5,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.18 : 8,581.22 = 4,120.66 : x
  2. Step 2: Convert to fraction form
    6,220.18/8,581.22 = 4,120.66/x
  3. Step 3: Cross multiply
    6,220.18x = 8,581.22 × 4,120.66
  4. Step 4: Simplify right side
    6,220.18x = 35,360,290.01
  5. Step 5: Solve for x
    x = 35,360,290.01/6,220.18
  6. Step 6: Final answer
    x = 5,684.77

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Double scale
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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.