Home / 7,224.76-9,970.68-4,081.42

Finding the Fourth Proportional to 7,224.76, 9,970.68 and 4,081.42

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Solution

The fourth proportional to 7,224.76, 9,970.68 and 4,081.42 is: 5,632.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.76 : 9,970.68 = 4,081.42 : x
  2. Step 2: Convert to fraction form
    7,224.76/9,970.68 = 4,081.42/x
  3. Step 3: Cross multiply
    7,224.76x = 9,970.68 × 4,081.42
  4. Step 4: Simplify right side
    7,224.76x = 40,694,532.77
  5. Step 5: Solve for x
    x = 40,694,532.77/7,224.76
  6. Step 6: Final answer
    x = 5,632.65

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Half scale
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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.