Home / 2,576.19-3,869.45-1,538.22

Finding the Fourth Proportional to 2,576.19, 3,869.45 and 1,538.22

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Solution

The fourth proportional to 2,576.19, 3,869.45 and 1,538.22 is: 2,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.19 : 3,869.45 = 1,538.22 : x
  2. Step 2: Convert to fraction form
    2,576.19/3,869.45 = 1,538.22/x
  3. Step 3: Cross multiply
    2,576.19x = 3,869.45 × 1,538.22
  4. Step 4: Simplify right side
    2,576.19x = 5,952,065.38
  5. Step 5: Solve for x
    x = 5,952,065.38/2,576.19
  6. Step 6: Final answer
    x = 2,310.41

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1.5x scale

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.