Home / 1,946.72-2,917.04-1,125.38

Finding the Fourth Proportional to 1,946.72, 2,917.04 and 1,125.38

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Solution

The fourth proportional to 1,946.72, 2,917.04 and 1,125.38 is: 1,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.72 : 2,917.04 = 1,125.38 : x
  2. Step 2: Convert to fraction form
    1,946.72/2,917.04 = 1,125.38/x
  3. Step 3: Cross multiply
    1,946.72x = 2,917.04 × 1,125.38
  4. Step 4: Simplify right side
    1,946.72x = 3,282,758.26
  5. Step 5: Solve for x
    x = 3,282,758.26/1,946.72
  6. Step 6: Final answer
    x = 1,686.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.