Home / 7,520.35-11,279.71-1,974.25

Finding the Fourth Proportional to 7,520.35, 11,279.71 and 1,974.25

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Solution

The fourth proportional to 7,520.35, 11,279.71 and 1,974.25 is: 2,961.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.35 : 11,279.71 = 1,974.25 : x
  2. Step 2: Convert to fraction form
    7,520.35/11,279.71 = 1,974.25/x
  3. Step 3: Cross multiply
    7,520.35x = 11,279.71 × 1,974.25
  4. Step 4: Simplify right side
    7,520.35x = 22,268,967.47
  5. Step 5: Solve for x
    x = 22,268,967.47/7,520.35
  6. Step 6: Final answer
    x = 2,961.16

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.