Home / 3,212.09-4,432.68-1,885.80

Finding the Fourth Proportional to 3,212.09, 4,432.68 and 1,885.80

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Solution

The fourth proportional to 3,212.09, 4,432.68 and 1,885.80 is: 2,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.09 : 4,432.68 = 1,885.80 : x
  2. Step 2: Convert to fraction form
    3,212.09/4,432.68 = 1,885.80/x
  3. Step 3: Cross multiply
    3,212.09x = 4,432.68 × 1,885.80
  4. Step 4: Simplify right side
    3,212.09x = 8,359,147.94
  5. Step 5: Solve for x
    x = 8,359,147.94/3,212.09
  6. Step 6: Final answer
    x = 2,602.41

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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.