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Finding the Fourth Proportional to 5,265.78, 7,267.12 and 2,907.94

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Solution

The fourth proportional to 5,265.78, 7,267.12 and 2,907.94 is: 4,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.78 : 7,267.12 = 2,907.94 : x
  2. Step 2: Convert to fraction form
    5,265.78/7,267.12 = 2,907.94/x
  3. Step 3: Cross multiply
    5,265.78x = 7,267.12 × 2,907.94
  4. Step 4: Simplify right side
    5,265.78x = 21,132,348.93
  5. Step 5: Solve for x
    x = 21,132,348.93/5,265.78
  6. Step 6: Final answer
    x = 4,013.15

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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.