Home / 3,068.18-4,601.80-1,120.39

Finding the Fourth Proportional to 3,068.18, 4,601.80 and 1,120.39

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Solution

The fourth proportional to 3,068.18, 4,601.80 and 1,120.39 is: 1,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.18 : 4,601.80 = 1,120.39 : x
  2. Step 2: Convert to fraction form
    3,068.18/4,601.80 = 1,120.39/x
  3. Step 3: Cross multiply
    3,068.18x = 4,601.80 × 1,120.39
  4. Step 4: Simplify right side
    3,068.18x = 5,155,810.70
  5. Step 5: Solve for x
    x = 5,155,810.70/3,068.18
  6. Step 6: Final answer
    x = 1,680.41

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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.