Home / 2,810.38-3,877.46-1,631.22

Finding the Fourth Proportional to 2,810.38, 3,877.46 and 1,631.22

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Solution

The fourth proportional to 2,810.38, 3,877.46 and 1,631.22 is: 2,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.38 : 3,877.46 = 1,631.22 : x
  2. Step 2: Convert to fraction form
    2,810.38/3,877.46 = 1,631.22/x
  3. Step 3: Cross multiply
    2,810.38x = 3,877.46 × 1,631.22
  4. Step 4: Simplify right side
    2,810.38x = 6,324,990.30
  5. Step 5: Solve for x
    x = 6,324,990.30/2,810.38
  6. Step 6: Final answer
    x = 2,250.58

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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.