Home / 3,291.18-4,938.71-1,212.64

Finding the Fourth Proportional to 3,291.18, 4,938.71 and 1,212.64

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Solution

The fourth proportional to 3,291.18, 4,938.71 and 1,212.64 is: 1,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.18 : 4,938.71 = 1,212.64 : x
  2. Step 2: Convert to fraction form
    3,291.18/4,938.71 = 1,212.64/x
  3. Step 3: Cross multiply
    3,291.18x = 4,938.71 × 1,212.64
  4. Step 4: Simplify right side
    3,291.18x = 5,988,877.29
  5. Step 5: Solve for x
    x = 5,988,877.29/3,291.18
  6. Step 6: Final answer
    x = 1,819.67

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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.