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Finding the Fourth Proportional to 5,255, 7,251.82 and 2,897.08

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Solution

The fourth proportional to 5,255, 7,251.82 and 2,897.08 is: 3,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255 : 7,251.82 = 2,897.08 : x
  2. Step 2: Convert to fraction form
    5,255/7,251.82 = 2,897.08/x
  3. Step 3: Cross multiply
    5,255x = 7,251.82 × 2,897.08
  4. Step 4: Simplify right side
    5,255x = 21,009,102.69
  5. Step 5: Solve for x
    x = 21,009,102.69/5,255
  6. Step 6: Final answer
    x = 3,997.93

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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.