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Finding the Fourth Proportional to 5,013.75, 6,918.51 and 2,775.51

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Solution

The fourth proportional to 5,013.75, 6,918.51 and 2,775.51 is: 3,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,013.75 : 6,918.51 = 2,775.51 : x
  2. Step 2: Convert to fraction form
    5,013.75/6,918.51 = 2,775.51/x
  3. Step 3: Cross multiply
    5,013.75x = 6,918.51 × 2,775.51
  4. Step 4: Simplify right side
    5,013.75x = 19,202,414.43
  5. Step 5: Solve for x
    x = 19,202,414.43/5,013.75
  6. Step 6: Final answer
    x = 3,829.95

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1.5x scale

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.