Home / 2,876.09-3,967.89-1,616.87

Finding the Fourth Proportional to 2,876.09, 3,967.89 and 1,616.87

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Solution

The fourth proportional to 2,876.09, 3,967.89 and 1,616.87 is: 2,230.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.09 : 3,967.89 = 1,616.87 : x
  2. Step 2: Convert to fraction form
    2,876.09/3,967.89 = 1,616.87/x
  3. Step 3: Cross multiply
    2,876.09x = 3,967.89 × 1,616.87
  4. Step 4: Simplify right side
    2,876.09x = 6,415,542.46
  5. Step 5: Solve for x
    x = 6,415,542.46/2,876.09
  6. Step 6: Final answer
    x = 2,230.65

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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.