Home / 3,438,379.10-4,744,685.22-1,988,168.60

Finding the Fourth Proportional to 3,438,379.10, 4,744,685.22 and 1,988,168.60

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Solution

The fourth proportional to 3,438,379.10, 4,744,685.22 and 1,988,168.60 is: 2,743,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438,379.10 : 4,744,685.22 = 1,988,168.60 : x
  2. Step 2: Convert to fraction form
    3,438,379.10/4,744,685.22 = 1,988,168.60/x
  3. Step 3: Cross multiply
    3,438,379.10x = 4,744,685.22 × 1,988,168.60
  4. Step 4: Simplify right side
    3,438,379.10x = 9,433,234,171,288.09
  5. Step 5: Solve for x
    x = 9,433,234,171,288.09/3,438,379.10
  6. Step 6: Final answer
    x = 2,743,511.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.