Home / 6,820.83-10,231.38-2,140.74

Finding the Fourth Proportional to 6,820.83, 10,231.38 and 2,140.74

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Solution

The fourth proportional to 6,820.83, 10,231.38 and 2,140.74 is: 3,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.83 : 10,231.38 = 2,140.74 : x
  2. Step 2: Convert to fraction form
    6,820.83/10,231.38 = 2,140.74/x
  3. Step 3: Cross multiply
    6,820.83x = 10,231.38 × 2,140.74
  4. Step 4: Simplify right side
    6,820.83x = 21,902,724.42
  5. Step 5: Solve for x
    x = 21,902,724.42/6,820.83
  6. Step 6: Final answer
    x = 3,211.15

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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.