Home / 2,772.38-4,160.24-1,106.21

Finding the Fourth Proportional to 2,772.38, 4,160.24 and 1,106.21

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Solution

The fourth proportional to 2,772.38, 4,160.24 and 1,106.21 is: 1,659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.38 : 4,160.24 = 1,106.21 : x
  2. Step 2: Convert to fraction form
    2,772.38/4,160.24 = 1,106.21/x
  3. Step 3: Cross multiply
    2,772.38x = 4,160.24 × 1,106.21
  4. Step 4: Simplify right side
    2,772.38x = 4,602,103.96
  5. Step 5: Solve for x
    x = 4,602,103.96/2,772.38
  6. Step 6: Final answer
    x = 1,659.98

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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.