Home / 1,743.74-2,406.78-1,185.14

Finding the Fourth Proportional to 1,743.74, 2,406.78 and 1,185.14

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Solution

The fourth proportional to 1,743.74, 2,406.78 and 1,185.14 is: 1,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.74 : 2,406.78 = 1,185.14 : x
  2. Step 2: Convert to fraction form
    1,743.74/2,406.78 = 1,185.14/x
  3. Step 3: Cross multiply
    1,743.74x = 2,406.78 × 1,185.14
  4. Step 4: Simplify right side
    1,743.74x = 2,852,371.25
  5. Step 5: Solve for x
    x = 2,852,371.25/1,743.74
  6. Step 6: Final answer
    x = 1,635.78

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1.5x scale

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.