Home / 1,776.88-2,451.66-1,171.16

Finding the Fourth Proportional to 1,776.88, 2,451.66 and 1,171.16

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Solution

The fourth proportional to 1,776.88, 2,451.66 and 1,171.16 is: 1,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.88 : 2,451.66 = 1,171.16 : x
  2. Step 2: Convert to fraction form
    1,776.88/2,451.66 = 1,171.16/x
  3. Step 3: Cross multiply
    1,776.88x = 2,451.66 × 1,171.16
  4. Step 4: Simplify right side
    1,776.88x = 2,871,286.13
  5. Step 5: Solve for x
    x = 2,871,286.13/1,776.88
  6. Step 6: Final answer
    x = 1,615.91

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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.