Home / 2,827.14-3,897.38-1,985.28

Finding the Fourth Proportional to 2,827.14, 3,897.38 and 1,985.28

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Solution

The fourth proportional to 2,827.14, 3,897.38 and 1,985.28 is: 2,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.14 : 3,897.38 = 1,985.28 : x
  2. Step 2: Convert to fraction form
    2,827.14/3,897.38 = 1,985.28/x
  3. Step 3: Cross multiply
    2,827.14x = 3,897.38 × 1,985.28
  4. Step 4: Simplify right side
    2,827.14x = 7,737,390.57
  5. Step 5: Solve for x
    x = 7,737,390.57/2,827.14
  6. Step 6: Final answer
    x = 2,736.83

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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.