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Finding the Fourth Proportional to 2,772.48, 3,826.04 and 1,530.48

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Solution

The fourth proportional to 2,772.48, 3,826.04 and 1,530.48 is: 2,112.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.48 : 3,826.04 = 1,530.48 : x
  2. Step 2: Convert to fraction form
    2,772.48/3,826.04 = 1,530.48/x
  3. Step 3: Cross multiply
    2,772.48x = 3,826.04 × 1,530.48
  4. Step 4: Simplify right side
    2,772.48x = 5,855,677.70
  5. Step 5: Solve for x
    x = 5,855,677.70/2,772.48
  6. Step 6: Final answer
    x = 2,112.07

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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.