Home / 3,415.59-5,120.33-1,335.11

Finding the Fourth Proportional to 3,415.59, 5,120.33 and 1,335.11

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Solution

The fourth proportional to 3,415.59, 5,120.33 and 1,335.11 is: 2,001.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.59 : 5,120.33 = 1,335.11 : x
  2. Step 2: Convert to fraction form
    3,415.59/5,120.33 = 1,335.11/x
  3. Step 3: Cross multiply
    3,415.59x = 5,120.33 × 1,335.11
  4. Step 4: Simplify right side
    3,415.59x = 6,836,203.79
  5. Step 5: Solve for x
    x = 6,836,203.79/3,415.59
  6. Step 6: Final answer
    x = 2,001.47

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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.