Home / 5,486.72-8,227.20-1,788.08

Finding the Fourth Proportional to 5,486.72, 8,227.20 and 1,788.08

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Solution

The fourth proportional to 5,486.72, 8,227.20 and 1,788.08 is: 2,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.72 : 8,227.20 = 1,788.08 : x
  2. Step 2: Convert to fraction form
    5,486.72/8,227.20 = 1,788.08/x
  3. Step 3: Cross multiply
    5,486.72x = 8,227.20 × 1,788.08
  4. Step 4: Simplify right side
    5,486.72x = 14,710,891.78
  5. Step 5: Solve for x
    x = 14,710,891.78/5,486.72
  6. Step 6: Final answer
    x = 2,681.18

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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.