Home / 3,897.12-5,844.54-2,117.90

Finding the Fourth Proportional to 3,897.12, 5,844.54 and 2,117.90

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Solution

The fourth proportional to 3,897.12, 5,844.54 and 2,117.90 is: 3,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.12 : 5,844.54 = 2,117.90 : x
  2. Step 2: Convert to fraction form
    3,897.12/5,844.54 = 2,117.90/x
  3. Step 3: Cross multiply
    3,897.12x = 5,844.54 × 2,117.90
  4. Step 4: Simplify right side
    3,897.12x = 12,378,157.94
  5. Step 5: Solve for x
    x = 12,378,157.94/3,897.12
  6. Step 6: Final answer
    x = 3,176.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.