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Finding the Fourth Proportional to 2,649.78, 3,652.92 and 2,088

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Solution

The fourth proportional to 2,649.78, 3,652.92 and 2,088 is: 2,878.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.78 : 3,652.92 = 2,088 : x
  2. Step 2: Convert to fraction form
    2,649.78/3,652.92 = 2,088/x
  3. Step 3: Cross multiply
    2,649.78x = 3,652.92 × 2,088
  4. Step 4: Simplify right side
    2,649.78x = 7,627,296.96
  5. Step 5: Solve for x
    x = 7,627,296.96/2,649.78
  6. Step 6: Final answer
    x = 2,878.46

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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.