Home / 2,709.60-4,064.40-2,272.20

Finding the Fourth Proportional to 2,709.60, 4,064.40 and 2,272.20

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Solution

The fourth proportional to 2,709.60, 4,064.40 and 2,272.20 is: 3,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.60 : 4,064.40 = 2,272.20 : x
  2. Step 2: Convert to fraction form
    2,709.60/4,064.40 = 2,272.20/x
  3. Step 3: Cross multiply
    2,709.60x = 4,064.40 × 2,272.20
  4. Step 4: Simplify right side
    2,709.60x = 9,235,129.68
  5. Step 5: Solve for x
    x = 9,235,129.68/2,709.60
  6. Step 6: Final answer
    x = 3,408.30

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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.