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Finding the Fourth Proportional to 5,978.79, 8,251.04 and 3,326.25

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Solution

The fourth proportional to 5,978.79, 8,251.04 and 3,326.25 is: 4,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.79 : 8,251.04 = 3,326.25 : x
  2. Step 2: Convert to fraction form
    5,978.79/8,251.04 = 3,326.25/x
  3. Step 3: Cross multiply
    5,978.79x = 8,251.04 × 3,326.25
  4. Step 4: Simplify right side
    5,978.79x = 27,445,021.80
  5. Step 5: Solve for x
    x = 27,445,021.80/5,978.79
  6. Step 6: Final answer
    x = 4,590.40

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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.