Home / 5,709.80-8,566.30-2,788.20

Finding the Fourth Proportional to 5,709.80, 8,566.30 and 2,788.20

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Solution

The fourth proportional to 5,709.80, 8,566.30 and 2,788.20 is: 4,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.80 : 8,566.30 = 2,788.20 : x
  2. Step 2: Convert to fraction form
    5,709.80/8,566.30 = 2,788.20/x
  3. Step 3: Cross multiply
    5,709.80x = 8,566.30 × 2,788.20
  4. Step 4: Simplify right side
    5,709.80x = 23,884,557.66
  5. Step 5: Solve for x
    x = 23,884,557.66/5,709.80
  6. Step 6: Final answer
    x = 4,183.08

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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.