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Finding the Fourth Proportional to 5,486.74, 8,230.03 and 1,326.72

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Solution

The fourth proportional to 5,486.74, 8,230.03 and 1,326.72 is: 1,990.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.74 : 8,230.03 = 1,326.72 : x
  2. Step 2: Convert to fraction form
    5,486.74/8,230.03 = 1,326.72/x
  3. Step 3: Cross multiply
    5,486.74x = 8,230.03 × 1,326.72
  4. Step 4: Simplify right side
    5,486.74x = 10,918,954.03
  5. Step 5: Solve for x
    x = 10,918,954.03/5,486.74
  6. Step 6: Final answer
    x = 1,990.06

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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.