Home / 3,617.20-5,417.36-2,788.88

Finding the Fourth Proportional to 3,617.20, 5,417.36 and 2,788.88

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Solution

The fourth proportional to 3,617.20, 5,417.36 and 2,788.88 is: 4,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.20 : 5,417.36 = 2,788.88 : x
  2. Step 2: Convert to fraction form
    3,617.20/5,417.36 = 2,788.88/x
  3. Step 3: Cross multiply
    3,617.20x = 5,417.36 × 2,788.88
  4. Step 4: Simplify right side
    3,617.20x = 15,108,366.96
  5. Step 5: Solve for x
    x = 15,108,366.96/3,617.20
  6. Step 6: Final answer
    x = 4,176.81

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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.