Home / 1,681.97-2,317.33-1,261.66

Finding the Fourth Proportional to 1,681.97, 2,317.33 and 1,261.66

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Solution

The fourth proportional to 1,681.97, 2,317.33 and 1,261.66 is: 1,738.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.97 : 2,317.33 = 1,261.66 : x
  2. Step 2: Convert to fraction form
    1,681.97/2,317.33 = 1,261.66/x
  3. Step 3: Cross multiply
    1,681.97x = 2,317.33 × 1,261.66
  4. Step 4: Simplify right side
    1,681.97x = 2,923,682.57
  5. Step 5: Solve for x
    x = 2,923,682.57/1,681.97
  6. Step 6: Final answer
    x = 1,738.25

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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.