Home / 2,761.02-3,801.80-2,165.94

Finding the Fourth Proportional to 2,761.02, 3,801.80 and 2,165.94

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Solution

The fourth proportional to 2,761.02, 3,801.80 and 2,165.94 is: 2,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.02 : 3,801.80 = 2,165.94 : x
  2. Step 2: Convert to fraction form
    2,761.02/3,801.80 = 2,165.94/x
  3. Step 3: Cross multiply
    2,761.02x = 3,801.80 × 2,165.94
  4. Step 4: Simplify right side
    2,761.02x = 8,234,476.11
  5. Step 5: Solve for x
    x = 8,234,476.11/2,761.02
  6. Step 6: Final answer
    x = 2,982.40

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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.