Home / 3,212.12-4,432.76-1,885.84

Finding the Fourth Proportional to 3,212.12, 4,432.76 and 1,885.84

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Solution

The fourth proportional to 3,212.12, 4,432.76 and 1,885.84 is: 2,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.12 : 4,432.76 = 1,885.84 : x
  2. Step 2: Convert to fraction form
    3,212.12/4,432.76 = 1,885.84/x
  3. Step 3: Cross multiply
    3,212.12x = 4,432.76 × 1,885.84
  4. Step 4: Simplify right side
    3,212.12x = 8,359,476.12
  5. Step 5: Solve for x
    x = 8,359,476.12/3,212.12
  6. Step 6: Final answer
    x = 2,602.48

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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.