Home / 7,935.20-11,902.80-2,388.32

Finding the Fourth Proportional to 7,935.20, 11,902.80 and 2,388.32

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Solution

The fourth proportional to 7,935.20, 11,902.80 and 2,388.32 is: 3,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.20 : 11,902.80 = 2,388.32 : x
  2. Step 2: Convert to fraction form
    7,935.20/11,902.80 = 2,388.32/x
  3. Step 3: Cross multiply
    7,935.20x = 11,902.80 × 2,388.32
  4. Step 4: Simplify right side
    7,935.20x = 28,427,695.30
  5. Step 5: Solve for x
    x = 28,427,695.30/7,935.20
  6. Step 6: Final answer
    x = 3,582.48

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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.