Home / 5,486.51-8,229.90-1,788.75

Finding the Fourth Proportional to 5,486.51, 8,229.90 and 1,788.75

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Solution

The fourth proportional to 5,486.51, 8,229.90 and 1,788.75 is: 2,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.51 : 8,229.90 = 1,788.75 : x
  2. Step 2: Convert to fraction form
    5,486.51/8,229.90 = 1,788.75/x
  3. Step 3: Cross multiply
    5,486.51x = 8,229.90 × 1,788.75
  4. Step 4: Simplify right side
    5,486.51x = 14,721,233.63
  5. Step 5: Solve for x
    x = 14,721,233.63/5,486.51
  6. Step 6: Final answer
    x = 2,683.17

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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.