Home / 3,977.02-5,966.20-1,638.29

Finding the Fourth Proportional to 3,977.02, 5,966.20 and 1,638.29

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Solution

The fourth proportional to 3,977.02, 5,966.20 and 1,638.29 is: 2,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.02 : 5,966.20 = 1,638.29 : x
  2. Step 2: Convert to fraction form
    3,977.02/5,966.20 = 1,638.29/x
  3. Step 3: Cross multiply
    3,977.02x = 5,966.20 × 1,638.29
  4. Step 4: Simplify right side
    3,977.02x = 9,774,335.97
  5. Step 5: Solve for x
    x = 9,774,335.97/3,977.02
  6. Step 6: Final answer
    x = 2,457.71

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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.