Home / 5,255.31-7,252.67-2,897.46

Finding the Fourth Proportional to 5,255.31, 7,252.67 and 2,897.46

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Solution

The fourth proportional to 5,255.31, 7,252.67 and 2,897.46 is: 3,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.31 : 7,252.67 = 2,897.46 : x
  2. Step 2: Convert to fraction form
    5,255.31/7,252.67 = 2,897.46/x
  3. Step 3: Cross multiply
    5,255.31x = 7,252.67 × 2,897.46
  4. Step 4: Simplify right side
    5,255.31x = 21,014,306.73
  5. Step 5: Solve for x
    x = 21,014,306.73/5,255.31
  6. Step 6: Final answer
    x = 3,998.68

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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.