Home / 6,722.26-9,277.76-3,889.70

Finding the Fourth Proportional to 6,722.26, 9,277.76 and 3,889.70

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Solution

The fourth proportional to 6,722.26, 9,277.76 and 3,889.70 is: 5,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.26 : 9,277.76 = 3,889.70 : x
  2. Step 2: Convert to fraction form
    6,722.26/9,277.76 = 3,889.70/x
  3. Step 3: Cross multiply
    6,722.26x = 9,277.76 × 3,889.70
  4. Step 4: Simplify right side
    6,722.26x = 36,087,703.07
  5. Step 5: Solve for x
    x = 36,087,703.07/6,722.26
  6. Step 6: Final answer
    x = 5,368.39

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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.