Home / 3,176.67-4,765.04-1,421.76

Finding the Fourth Proportional to 3,176.67, 4,765.04 and 1,421.76

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Solution

The fourth proportional to 3,176.67, 4,765.04 and 1,421.76 is: 2,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.67 : 4,765.04 = 1,421.76 : x
  2. Step 2: Convert to fraction form
    3,176.67/4,765.04 = 1,421.76/x
  3. Step 3: Cross multiply
    3,176.67x = 4,765.04 × 1,421.76
  4. Step 4: Simplify right side
    3,176.67x = 6,774,736.16
  5. Step 5: Solve for x
    x = 6,774,736.16/3,176.67
  6. Step 6: Final answer
    x = 2,132.65

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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.