Home / 5,255.81-7,252.91-2,897.96

Finding the Fourth Proportional to 5,255.81, 7,252.91 and 2,897.96

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Solution

The fourth proportional to 5,255.81, 7,252.91 and 2,897.96 is: 3,999.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.81 : 7,252.91 = 2,897.96 : x
  2. Step 2: Convert to fraction form
    5,255.81/7,252.91 = 2,897.96/x
  3. Step 3: Cross multiply
    5,255.81x = 7,252.91 × 2,897.96
  4. Step 4: Simplify right side
    5,255.81x = 21,018,592.31
  5. Step 5: Solve for x
    x = 21,018,592.31/5,255.81
  6. Step 6: Final answer
    x = 3,999.12

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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.