Home / 3,480.78-5,220.65-1,141.04

Finding the Fourth Proportional to 3,480.78, 5,220.65 and 1,141.04

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Solution

The fourth proportional to 3,480.78, 5,220.65 and 1,141.04 is: 1,711.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.78 : 5,220.65 = 1,141.04 : x
  2. Step 2: Convert to fraction form
    3,480.78/5,220.65 = 1,141.04/x
  3. Step 3: Cross multiply
    3,480.78x = 5,220.65 × 1,141.04
  4. Step 4: Simplify right side
    3,480.78x = 5,956,938.67
  5. Step 5: Solve for x
    x = 5,956,938.67/3,480.78
  6. Step 6: Final answer
    x = 1,711.38

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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.