Home / 1,946.18-2,685.24-1,189.76

Finding the Fourth Proportional to 1,946.18, 2,685.24 and 1,189.76

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Solution

The fourth proportional to 1,946.18, 2,685.24 and 1,189.76 is: 1,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.18 : 2,685.24 = 1,189.76 : x
  2. Step 2: Convert to fraction form
    1,946.18/2,685.24 = 1,189.76/x
  3. Step 3: Cross multiply
    1,946.18x = 2,685.24 × 1,189.76
  4. Step 4: Simplify right side
    1,946.18x = 3,194,791.14
  5. Step 5: Solve for x
    x = 3,194,791.14/1,946.18
  6. Step 6: Final answer
    x = 1,641.57

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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.