Home / 3,171.61-4,373.97-2,642.25

Finding the Fourth Proportional to 3,171.61, 4,373.97 and 2,642.25

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Solution

The fourth proportional to 3,171.61, 4,373.97 and 2,642.25 is: 3,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.61 : 4,373.97 = 2,642.25 : x
  2. Step 2: Convert to fraction form
    3,171.61/4,373.97 = 2,642.25/x
  3. Step 3: Cross multiply
    3,171.61x = 4,373.97 × 2,642.25
  4. Step 4: Simplify right side
    3,171.61x = 11,557,122.23
  5. Step 5: Solve for x
    x = 11,557,122.23/3,171.61
  6. Step 6: Final answer
    x = 3,643.93

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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.