Home / 6,220.60-8,586.20-3,670.72

Finding the Fourth Proportional to 6,220.60, 8,586.20 and 3,670.72

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Solution

The fourth proportional to 6,220.60, 8,586.20 and 3,670.72 is: 5,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.60 : 8,586.20 = 3,670.72 : x
  2. Step 2: Convert to fraction form
    6,220.60/8,586.20 = 3,670.72/x
  3. Step 3: Cross multiply
    6,220.60x = 8,586.20 × 3,670.72
  4. Step 4: Simplify right side
    6,220.60x = 31,517,523.78
  5. Step 5: Solve for x
    x = 31,517,523.78/6,220.60
  6. Step 6: Final answer
    x = 5,066.64

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Half 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.