Home / 1,976.61-2,727.71-1,137.48

Finding the Fourth Proportional to 1,976.61, 2,727.71 and 1,137.48

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Solution

The fourth proportional to 1,976.61, 2,727.71 and 1,137.48 is: 1,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.61 : 2,727.71 = 1,137.48 : x
  2. Step 2: Convert to fraction form
    1,976.61/2,727.71 = 1,137.48/x
  3. Step 3: Cross multiply
    1,976.61x = 2,727.71 × 1,137.48
  4. Step 4: Simplify right side
    1,976.61x = 3,102,715.57
  5. Step 5: Solve for x
    x = 3,102,715.57/1,976.61
  6. Step 6: Final answer
    x = 1,569.72

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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.