Home / 2,600.30-3,897.69-1,212.02

Finding the Fourth Proportional to 2,600.30, 3,897.69 and 1,212.02

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Solution

The fourth proportional to 2,600.30, 3,897.69 and 1,212.02 is: 1,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.30 : 3,897.69 = 1,212.02 : x
  2. Step 2: Convert to fraction form
    2,600.30/3,897.69 = 1,212.02/x
  3. Step 3: Cross multiply
    2,600.30x = 3,897.69 × 1,212.02
  4. Step 4: Simplify right side
    2,600.30x = 4,724,078.23
  5. Step 5: Solve for x
    x = 4,724,078.23/2,600.30
  6. Step 6: Final answer
    x = 1,816.74

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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.