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Finding the Fourth Proportional to 5,486.52, 8,229.99 and 1,788.78

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Solution

The fourth proportional to 5,486.52, 8,229.99 and 1,788.78 is: 2,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.52 : 8,229.99 = 1,788.78 : x
  2. Step 2: Convert to fraction form
    5,486.52/8,229.99 = 1,788.78/x
  3. Step 3: Cross multiply
    5,486.52x = 8,229.99 × 1,788.78
  4. Step 4: Simplify right side
    5,486.52x = 14,721,641.51
  5. Step 5: Solve for x
    x = 14,721,641.51/5,486.52
  6. Step 6: Final answer
    x = 2,683.24

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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.