Home / 1,975.74-2,726.90-1,137

Finding the Fourth Proportional to 1,975.74, 2,726.90 and 1,137

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Solution

The fourth proportional to 1,975.74, 2,726.90 and 1,137 is: 1,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.74 : 2,726.90 = 1,137 : x
  2. Step 2: Convert to fraction form
    1,975.74/2,726.90 = 1,137/x
  3. Step 3: Cross multiply
    1,975.74x = 2,726.90 × 1,137
  4. Step 4: Simplify right side
    1,975.74x = 3,100,485.30
  5. Step 5: Solve for x
    x = 3,100,485.30/1,975.74
  6. Step 6: Final answer
    x = 1,569.28

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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.