Home / 6,720.50-9,274.66-3,888.02

Finding the Fourth Proportional to 6,720.50, 9,274.66 and 3,888.02

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Solution

The fourth proportional to 6,720.50, 9,274.66 and 3,888.02 is: 5,365.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.50 : 9,274.66 = 3,888.02 : x
  2. Step 2: Convert to fraction form
    6,720.50/9,274.66 = 3,888.02/x
  3. Step 3: Cross multiply
    6,720.50x = 9,274.66 × 3,888.02
  4. Step 4: Simplify right side
    6,720.50x = 36,060,063.57
  5. Step 5: Solve for x
    x = 36,060,063.57/6,720.50
  6. Step 6: Final answer
    x = 5,365.68

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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.