Home / 3,977.32-5,970.13-2,938.49

Finding the Fourth Proportional to 3,977.32, 5,970.13 and 2,938.49

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Solution

The fourth proportional to 3,977.32, 5,970.13 and 2,938.49 is: 4,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.32 : 5,970.13 = 2,938.49 : x
  2. Step 2: Convert to fraction form
    3,977.32/5,970.13 = 2,938.49/x
  3. Step 3: Cross multiply
    3,977.32x = 5,970.13 × 2,938.49
  4. Step 4: Simplify right side
    3,977.32x = 17,543,167.30
  5. Step 5: Solve for x
    x = 17,543,167.30/3,977.32
  6. Step 6: Final answer
    x = 4,410.80

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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.