Home / 3,215.60-4,817.68-1,480.56

Finding the Fourth Proportional to 3,215.60, 4,817.68 and 1,480.56

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Solution

The fourth proportional to 3,215.60, 4,817.68 and 1,480.56 is: 2,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.60 : 4,817.68 = 1,480.56 : x
  2. Step 2: Convert to fraction form
    3,215.60/4,817.68 = 1,480.56/x
  3. Step 3: Cross multiply
    3,215.60x = 4,817.68 × 1,480.56
  4. Step 4: Simplify right side
    3,215.60x = 7,132,864.30
  5. Step 5: Solve for x
    x = 7,132,864.30/3,215.60
  6. Step 6: Final answer
    x = 2,218.21

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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.