Home / 5,255.06-7,251.63-2,897.21

Finding the Fourth Proportional to 5,255.06, 7,251.63 and 2,897.21

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Solution

The fourth proportional to 5,255.06, 7,251.63 and 2,897.21 is: 3,997.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.06 : 7,251.63 = 2,897.21 : x
  2. Step 2: Convert to fraction form
    5,255.06/7,251.63 = 2,897.21/x
  3. Step 3: Cross multiply
    5,255.06x = 7,251.63 × 2,897.21
  4. Step 4: Simplify right side
    5,255.06x = 21,009,458.69
  5. Step 5: Solve for x
    x = 21,009,458.69/5,255.06
  6. Step 6: Final answer
    x = 3,997.95

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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.