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Finding the Fourth Proportional to 2,902.84, 4,005.91 and 1,576.52

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Solution

The fourth proportional to 2,902.84, 4,005.91 and 1,576.52 is: 2,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.84 : 4,005.91 = 1,576.52 : x
  2. Step 2: Convert to fraction form
    2,902.84/4,005.91 = 1,576.52/x
  3. Step 3: Cross multiply
    2,902.84x = 4,005.91 × 1,576.52
  4. Step 4: Simplify right side
    2,902.84x = 6,315,398.12
  5. Step 5: Solve for x
    x = 6,315,398.12/2,902.84
  6. Step 6: Final answer
    x = 2,175.59

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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.