Home / 1,946.30-2,686.37-1,149.66

Finding the Fourth Proportional to 1,946.30, 2,686.37 and 1,149.66

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Solution

The fourth proportional to 1,946.30, 2,686.37 and 1,149.66 is: 1,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.30 : 2,686.37 = 1,149.66 : x
  2. Step 2: Convert to fraction form
    1,946.30/2,686.37 = 1,149.66/x
  3. Step 3: Cross multiply
    1,946.30x = 2,686.37 × 1,149.66
  4. Step 4: Simplify right side
    1,946.30x = 3,088,406.39
  5. Step 5: Solve for x
    x = 3,088,406.39/1,946.30
  6. Step 6: Final answer
    x = 1,586.81

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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.