Home / 5,255.70-7,253.18-2,897.83

Finding the Fourth Proportional to 5,255.70, 7,253.18 and 2,897.83

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Solution

The fourth proportional to 5,255.70, 7,253.18 and 2,897.83 is: 3,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.70 : 7,253.18 = 2,897.83 : x
  2. Step 2: Convert to fraction form
    5,255.70/7,253.18 = 2,897.83/x
  3. Step 3: Cross multiply
    5,255.70x = 7,253.18 × 2,897.83
  4. Step 4: Simplify right side
    5,255.70x = 21,018,468.11
  5. Step 5: Solve for x
    x = 21,018,468.11/5,255.70
  6. Step 6: Final answer
    x = 3,999.18

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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.