Home / 2,158.38-3,235.12-1,897.88

Finding the Fourth Proportional to 2,158.38, 3,235.12 and 1,897.88

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Solution

The fourth proportional to 2,158.38, 3,235.12 and 1,897.88 is: 2,844.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.38 : 3,235.12 = 1,897.88 : x
  2. Step 2: Convert to fraction form
    2,158.38/3,235.12 = 1,897.88/x
  3. Step 3: Cross multiply
    2,158.38x = 3,235.12 × 1,897.88
  4. Step 4: Simplify right side
    2,158.38x = 6,139,867.87
  5. Step 5: Solve for x
    x = 6,139,867.87/2,158.38
  6. Step 6: Final answer
    x = 2,844.66

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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.