Home / 2,875.38-3,967.94-1,616.49

Finding the Fourth Proportional to 2,875.38, 3,967.94 and 1,616.49

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Solution

The fourth proportional to 2,875.38, 3,967.94 and 1,616.49 is: 2,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.38 : 3,967.94 = 1,616.49 : x
  2. Step 2: Convert to fraction form
    2,875.38/3,967.94 = 1,616.49/x
  3. Step 3: Cross multiply
    2,875.38x = 3,967.94 × 1,616.49
  4. Step 4: Simplify right side
    2,875.38x = 6,414,127.25
  5. Step 5: Solve for x
    x = 6,414,127.25/2,875.38
  6. Step 6: Final answer
    x = 2,230.71

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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.