Home / 6,820.74-10,227.06-2,139.48

Finding the Fourth Proportional to 6,820.74, 10,227.06 and 2,139.48

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Solution

The fourth proportional to 6,820.74, 10,227.06 and 2,139.48 is: 3,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.74 : 10,227.06 = 2,139.48 : x
  2. Step 2: Convert to fraction form
    6,820.74/10,227.06 = 2,139.48/x
  3. Step 3: Cross multiply
    6,820.74x = 10,227.06 × 2,139.48
  4. Step 4: Simplify right side
    6,820.74x = 21,880,590.33
  5. Step 5: Solve for x
    x = 21,880,590.33/6,820.74
  6. Step 6: Final answer
    x = 3,207.95

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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.