Home / 1,946.15-2,905.10-1,801.61

Finding the Fourth Proportional to 1,946.15, 2,905.10 and 1,801.61

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Solution

The fourth proportional to 1,946.15, 2,905.10 and 1,801.61 is: 2,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.15 : 2,905.10 = 1,801.61 : x
  2. Step 2: Convert to fraction form
    1,946.15/2,905.10 = 1,801.61/x
  3. Step 3: Cross multiply
    1,946.15x = 2,905.10 × 1,801.61
  4. Step 4: Simplify right side
    1,946.15x = 5,233,833.68
  5. Step 5: Solve for x
    x = 5,233,833.68/1,946.15
  6. Step 6: Final answer
    x = 2,689.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.