Home / 4,869.88-6,722.67-3,191.38

Finding the Fourth Proportional to 4,869.88, 6,722.67 and 3,191.38

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Solution

The fourth proportional to 4,869.88, 6,722.67 and 3,191.38 is: 4,405.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.88 : 6,722.67 = 3,191.38 : x
  2. Step 2: Convert to fraction form
    4,869.88/6,722.67 = 3,191.38/x
  3. Step 3: Cross multiply
    4,869.88x = 6,722.67 × 3,191.38
  4. Step 4: Simplify right side
    4,869.88x = 21,454,594.58
  5. Step 5: Solve for x
    x = 21,454,594.58/4,869.88
  6. Step 6: Final answer
    x = 4,405.57

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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.