Home / 6,579.20-9,081.24-4,222.10

Finding the Fourth Proportional to 6,579.20, 9,081.24 and 4,222.10

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Solution

The fourth proportional to 6,579.20, 9,081.24 and 4,222.10 is: 5,827.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,579.20 : 9,081.24 = 4,222.10 : x
  2. Step 2: Convert to fraction form
    6,579.20/9,081.24 = 4,222.10/x
  3. Step 3: Cross multiply
    6,579.20x = 9,081.24 × 4,222.10
  4. Step 4: Simplify right side
    6,579.20x = 38,341,903.40
  5. Step 5: Solve for x
    x = 38,341,903.40/6,579.20
  6. Step 6: Final answer
    x = 5,827.75

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Half scale
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Double scale
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Similar ratio
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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.