Home / 7,821.50-11,732.22-2,631.02

Finding the Fourth Proportional to 7,821.50, 11,732.22 and 2,631.02

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Solution

The fourth proportional to 7,821.50, 11,732.22 and 2,631.02 is: 3,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.50 : 11,732.22 = 2,631.02 : x
  2. Step 2: Convert to fraction form
    7,821.50/11,732.22 = 2,631.02/x
  3. Step 3: Cross multiply
    7,821.50x = 11,732.22 × 2,631.02
  4. Step 4: Simplify right side
    7,821.50x = 30,867,646.80
  5. Step 5: Solve for x
    x = 30,867,646.80/7,821.50
  6. Step 6: Final answer
    x = 3,946.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.