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Finding the Fourth Proportional to 2,775.90, 3,848.28 and 2,627.94

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Solution

The fourth proportional to 2,775.90, 3,848.28 and 2,627.94 is: 3,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.90 : 3,848.28 = 2,627.94 : x
  2. Step 2: Convert to fraction form
    2,775.90/3,848.28 = 2,627.94/x
  3. Step 3: Cross multiply
    2,775.90x = 3,848.28 × 2,627.94
  4. Step 4: Simplify right side
    2,775.90x = 10,113,048.94
  5. Step 5: Solve for x
    x = 10,113,048.94/2,775.90
  6. Step 6: Final answer
    x = 3,643.16

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.