Home / 1,947.29-2,685.84-1,200.97

Finding the Fourth Proportional to 1,947.29, 2,685.84 and 1,200.97

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Solution

The fourth proportional to 1,947.29, 2,685.84 and 1,200.97 is: 1,656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.29 : 2,685.84 = 1,200.97 : x
  2. Step 2: Convert to fraction form
    1,947.29/2,685.84 = 1,200.97/x
  3. Step 3: Cross multiply
    1,947.29x = 2,685.84 × 1,200.97
  4. Step 4: Simplify right side
    1,947.29x = 3,225,613.26
  5. Step 5: Solve for x
    x = 3,225,613.26/1,947.29
  6. Step 6: Final answer
    x = 1,656.47

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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.