Home / 2,938.85-4,405.16-1,377.54

Finding the Fourth Proportional to 2,938.85, 4,405.16 and 1,377.54

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Solution

The fourth proportional to 2,938.85, 4,405.16 and 1,377.54 is: 2,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.85 : 4,405.16 = 1,377.54 : x
  2. Step 2: Convert to fraction form
    2,938.85/4,405.16 = 1,377.54/x
  3. Step 3: Cross multiply
    2,938.85x = 4,405.16 × 1,377.54
  4. Step 4: Simplify right side
    2,938.85x = 6,068,287.55
  5. Step 5: Solve for x
    x = 6,068,287.55/2,938.85
  6. Step 6: Final answer
    x = 2,064.85

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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.