Home / 1,611.17-2,222.77-946.97

Finding the Fourth Proportional to 1,611.17, 2,222.77 and 946.97

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Solution

The fourth proportional to 1,611.17, 2,222.77 and 946.97 is: 1,306.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.17 : 2,222.77 = 946.97 : x
  2. Step 2: Convert to fraction form
    1,611.17/2,222.77 = 946.97/x
  3. Step 3: Cross multiply
    1,611.17x = 2,222.77 × 946.97
  4. Step 4: Simplify right side
    1,611.17x = 2,104,896.51
  5. Step 5: Solve for x
    x = 2,104,896.51/1,611.17
  6. Step 6: Final answer
    x = 1,306.44

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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.