Home / 3,212.42-4,818.63-1,020.74

Finding the Fourth Proportional to 3,212.42, 4,818.63 and 1,020.74

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Solution

The fourth proportional to 3,212.42, 4,818.63 and 1,020.74 is: 1,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.42 : 4,818.63 = 1,020.74 : x
  2. Step 2: Convert to fraction form
    3,212.42/4,818.63 = 1,020.74/x
  3. Step 3: Cross multiply
    3,212.42x = 4,818.63 × 1,020.74
  4. Step 4: Simplify right side
    3,212.42x = 4,918,568.39
  5. Step 5: Solve for x
    x = 4,918,568.39/3,212.42
  6. Step 6: Final answer
    x = 1,531.11

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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.