Home / 1,975.80-2,725.46-1,277.17

Finding the Fourth Proportional to 1,975.80, 2,725.46 and 1,277.17

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Solution

The fourth proportional to 1,975.80, 2,725.46 and 1,277.17 is: 1,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.80 : 2,725.46 = 1,277.17 : x
  2. Step 2: Convert to fraction form
    1,975.80/2,725.46 = 1,277.17/x
  3. Step 3: Cross multiply
    1,975.80x = 2,725.46 × 1,277.17
  4. Step 4: Simplify right side
    1,975.80x = 3,480,869.36
  5. Step 5: Solve for x
    x = 3,480,869.36/1,975.80
  6. Step 6: Final answer
    x = 1,761.76

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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.