Home / 2,672.20-4,010.39-2,153.46

Finding the Fourth Proportional to 2,672.20, 4,010.39 and 2,153.46

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Solution

The fourth proportional to 2,672.20, 4,010.39 and 2,153.46 is: 3,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.20 : 4,010.39 = 2,153.46 : x
  2. Step 2: Convert to fraction form
    2,672.20/4,010.39 = 2,153.46/x
  3. Step 3: Cross multiply
    2,672.20x = 4,010.39 × 2,153.46
  4. Step 4: Simplify right side
    2,672.20x = 8,636,214.45
  5. Step 5: Solve for x
    x = 8,636,214.45/2,672.20
  6. Step 6: Final answer
    x = 3,231.87

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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.