Home / 5,255.62-7,252.81-2,897.85

Finding the Fourth Proportional to 5,255.62, 7,252.81 and 2,897.85

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Solution

The fourth proportional to 5,255.62, 7,252.81 and 2,897.85 is: 3,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.62 : 7,252.81 = 2,897.85 : x
  2. Step 2: Convert to fraction form
    5,255.62/7,252.81 = 2,897.85/x
  3. Step 3: Cross multiply
    5,255.62x = 7,252.81 × 2,897.85
  4. Step 4: Simplify right side
    5,255.62x = 21,017,555.46
  5. Step 5: Solve for x
    x = 21,017,555.46/5,255.62
  6. Step 6: Final answer
    x = 3,999.06

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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.