Home / 1,616.36-2,229.73-1,222.70

Finding the Fourth Proportional to 1,616.36, 2,229.73 and 1,222.70

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Solution

The fourth proportional to 1,616.36, 2,229.73 and 1,222.70 is: 1,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.36 : 2,229.73 = 1,222.70 : x
  2. Step 2: Convert to fraction form
    1,616.36/2,229.73 = 1,222.70/x
  3. Step 3: Cross multiply
    1,616.36x = 2,229.73 × 1,222.70
  4. Step 4: Simplify right side
    1,616.36x = 2,726,276.67
  5. Step 5: Solve for x
    x = 2,726,276.67/1,616.36
  6. Step 6: Final answer
    x = 1,686.68

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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.