Home / 3,846.29-5,307.88-2,168.11

Finding the Fourth Proportional to 3,846.29, 5,307.88 and 2,168.11

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Solution

The fourth proportional to 3,846.29, 5,307.88 and 2,168.11 is: 2,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.29 : 5,307.88 = 2,168.11 : x
  2. Step 2: Convert to fraction form
    3,846.29/5,307.88 = 2,168.11/x
  3. Step 3: Cross multiply
    3,846.29x = 5,307.88 × 2,168.11
  4. Step 4: Simplify right side
    3,846.29x = 11,508,030.33
  5. Step 5: Solve for x
    x = 11,508,030.33/3,846.29
  6. Step 6: Final answer
    x = 2,991.98

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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.