Home / 3,488.89-4,815-1,997.02

Finding the Fourth Proportional to 3,488.89, 4,815 and 1,997.02

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Solution

The fourth proportional to 3,488.89, 4,815 and 1,997.02 is: 2,756.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.89 : 4,815 = 1,997.02 : x
  2. Step 2: Convert to fraction form
    3,488.89/4,815 = 1,997.02/x
  3. Step 3: Cross multiply
    3,488.89x = 4,815 × 1,997.02
  4. Step 4: Simplify right side
    3,488.89x = 9,615,651.30
  5. Step 5: Solve for x
    x = 9,615,651.30/3,488.89
  6. Step 6: Final answer
    x = 2,756.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.