Home / 6,805.20-10,205.02-2,123.62

Finding the Fourth Proportional to 6,805.20, 10,205.02 and 2,123.62

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Solution

The fourth proportional to 6,805.20, 10,205.02 and 2,123.62 is: 3,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805.20 : 10,205.02 = 2,123.62 : x
  2. Step 2: Convert to fraction form
    6,805.20/10,205.02 = 2,123.62/x
  3. Step 3: Cross multiply
    6,805.20x = 10,205.02 × 2,123.62
  4. Step 4: Simplify right side
    6,805.20x = 21,671,584.57
  5. Step 5: Solve for x
    x = 21,671,584.57/6,805.20
  6. Step 6: Final answer
    x = 3,184.56

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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.