Home / 3,168.73-4,370.28-2,421.50

Finding the Fourth Proportional to 3,168.73, 4,370.28 and 2,421.50

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Solution

The fourth proportional to 3,168.73, 4,370.28 and 2,421.50 is: 3,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.73 : 4,370.28 = 2,421.50 : x
  2. Step 2: Convert to fraction form
    3,168.73/4,370.28 = 2,421.50/x
  3. Step 3: Cross multiply
    3,168.73x = 4,370.28 × 2,421.50
  4. Step 4: Simplify right side
    3,168.73x = 10,582,634.87
  5. Step 5: Solve for x
    x = 10,582,634.87/3,168.73
  6. Step 6: Final answer
    x = 3,339.71

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1.5x scale

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.