Home / 5,255.17-7,252.14-2,897.31

Finding the Fourth Proportional to 5,255.17, 7,252.14 and 2,897.31

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Solution

The fourth proportional to 5,255.17, 7,252.14 and 2,897.31 is: 3,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.17 : 7,252.14 = 2,897.31 : x
  2. Step 2: Convert to fraction form
    5,255.17/7,252.14 = 2,897.31/x
  3. Step 3: Cross multiply
    5,255.17x = 7,252.14 × 2,897.31
  4. Step 4: Simplify right side
    5,255.17x = 21,011,735.80
  5. Step 5: Solve for x
    x = 21,011,735.80/5,255.17
  6. Step 6: Final answer
    x = 3,998.30

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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.