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Finding the Fourth Proportional to 5,837.78, 8,720.56 and 5,251.88

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Solution

The fourth proportional to 5,837.78, 8,720.56 and 5,251.88 is: 7,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,837.78 : 8,720.56 = 5,251.88 : x
  2. Step 2: Convert to fraction form
    5,837.78/8,720.56 = 5,251.88/x
  3. Step 3: Cross multiply
    5,837.78x = 8,720.56 × 5,251.88
  4. Step 4: Simplify right side
    5,837.78x = 45,799,334.65
  5. Step 5: Solve for x
    x = 45,799,334.65/5,837.78
  6. Step 6: Final answer
    x = 7,845.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.