Home / 2,910.40-4,016.29-1,616.82

Finding the Fourth Proportional to 2,910.40, 4,016.29 and 1,616.82

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Solution

The fourth proportional to 2,910.40, 4,016.29 and 1,616.82 is: 2,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.40 : 4,016.29 = 1,616.82 : x
  2. Step 2: Convert to fraction form
    2,910.40/4,016.29 = 1,616.82/x
  3. Step 3: Cross multiply
    2,910.40x = 4,016.29 × 1,616.82
  4. Step 4: Simplify right side
    2,910.40x = 6,493,623.05
  5. Step 5: Solve for x
    x = 6,493,623.05/2,910.40
  6. Step 6: Final answer
    x = 2,231.18

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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.