Home / 3,398.40-5,091.52-2,061.76

Finding the Fourth Proportional to 3,398.40, 5,091.52 and 2,061.76

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Solution

The fourth proportional to 3,398.40, 5,091.52 and 2,061.76 is: 3,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.40 : 5,091.52 = 2,061.76 : x
  2. Step 2: Convert to fraction form
    3,398.40/5,091.52 = 2,061.76/x
  3. Step 3: Cross multiply
    3,398.40x = 5,091.52 × 2,061.76
  4. Step 4: Simplify right side
    3,398.40x = 10,497,492.28
  5. Step 5: Solve for x
    x = 10,497,492.28/3,398.40
  6. Step 6: Final answer
    x = 3,088.95

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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.