Home / 4,338.36-6,492.96-3,978.72

Finding the Fourth Proportional to 4,338.36, 6,492.96 and 3,978.72

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Solution

The fourth proportional to 4,338.36, 6,492.96 and 3,978.72 is: 5,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,338.36 : 6,492.96 = 3,978.72 : x
  2. Step 2: Convert to fraction form
    4,338.36/6,492.96 = 3,978.72/x
  3. Step 3: Cross multiply
    4,338.36x = 6,492.96 × 3,978.72
  4. Step 4: Simplify right side
    4,338.36x = 25,833,669.81
  5. Step 5: Solve for x
    x = 25,833,669.81/4,338.36
  6. Step 6: Final answer
    x = 5,954.71

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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.