Home / 5,487.02-8,231.39-1,788.39

Finding the Fourth Proportional to 5,487.02, 8,231.39 and 1,788.39

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Solution

The fourth proportional to 5,487.02, 8,231.39 and 1,788.39 is: 2,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.02 : 8,231.39 = 1,788.39 : x
  2. Step 2: Convert to fraction form
    5,487.02/8,231.39 = 1,788.39/x
  3. Step 3: Cross multiply
    5,487.02x = 8,231.39 × 1,788.39
  4. Step 4: Simplify right side
    5,487.02x = 14,720,933.33
  5. Step 5: Solve for x
    x = 14,720,933.33/5,487.02
  6. Step 6: Final answer
    x = 2,682.87

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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.