Home / 4,117.97-5,685.40-3,171.99

Finding the Fourth Proportional to 4,117.97, 5,685.40 and 3,171.99

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Solution

The fourth proportional to 4,117.97, 5,685.40 and 3,171.99 is: 4,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117.97 : 5,685.40 = 3,171.99 : x
  2. Step 2: Convert to fraction form
    4,117.97/5,685.40 = 3,171.99/x
  3. Step 3: Cross multiply
    4,117.97x = 5,685.40 × 3,171.99
  4. Step 4: Simplify right side
    4,117.97x = 18,034,000.34
  5. Step 5: Solve for x
    x = 18,034,000.34/4,117.97
  6. Step 6: Final answer
    x = 4,379.34

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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.