Home / 5,487.58-8,229.20-1,788.90

Finding the Fourth Proportional to 5,487.58, 8,229.20 and 1,788.90

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Solution

The fourth proportional to 5,487.58, 8,229.20 and 1,788.90 is: 2,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.58 : 8,229.20 = 1,788.90 : x
  2. Step 2: Convert to fraction form
    5,487.58/8,229.20 = 1,788.90/x
  3. Step 3: Cross multiply
    5,487.58x = 8,229.20 × 1,788.90
  4. Step 4: Simplify right side
    5,487.58x = 14,721,215.88
  5. Step 5: Solve for x
    x = 14,721,215.88/5,487.58
  6. Step 6: Final answer
    x = 2,682.64

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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.