Home / 3,402.40-5,106.80-1,760.08

Finding the Fourth Proportional to 3,402.40, 5,106.80 and 1,760.08

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Solution

The fourth proportional to 3,402.40, 5,106.80 and 1,760.08 is: 2,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.40 : 5,106.80 = 1,760.08 : x
  2. Step 2: Convert to fraction form
    3,402.40/5,106.80 = 1,760.08/x
  3. Step 3: Cross multiply
    3,402.40x = 5,106.80 × 1,760.08
  4. Step 4: Simplify right side
    3,402.40x = 8,988,376.54
  5. Step 5: Solve for x
    x = 8,988,376.54/3,402.40
  6. Step 6: Final answer
    x = 2,641.78

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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.