Home / 3,411.70-5,116.11-1,220.02

Finding the Fourth Proportional to 3,411.70, 5,116.11 and 1,220.02

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Solution

The fourth proportional to 3,411.70, 5,116.11 and 1,220.02 is: 1,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.70 : 5,116.11 = 1,220.02 : x
  2. Step 2: Convert to fraction form
    3,411.70/5,116.11 = 1,220.02/x
  3. Step 3: Cross multiply
    3,411.70x = 5,116.11 × 1,220.02
  4. Step 4: Simplify right side
    3,411.70x = 6,241,756.52
  5. Step 5: Solve for x
    x = 6,241,756.52/3,411.70
  6. Step 6: Final answer
    x = 1,829.52

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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.