Home / 3,316.96-4,977.69-1,369.15

Finding the Fourth Proportional to 3,316.96, 4,977.69 and 1,369.15

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Solution

The fourth proportional to 3,316.96, 4,977.69 and 1,369.15 is: 2,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.96 : 4,977.69 = 1,369.15 : x
  2. Step 2: Convert to fraction form
    3,316.96/4,977.69 = 1,369.15/x
  3. Step 3: Cross multiply
    3,316.96x = 4,977.69 × 1,369.15
  4. Step 4: Simplify right side
    3,316.96x = 6,815,204.26
  5. Step 5: Solve for x
    x = 6,815,204.26/3,316.96
  6. Step 6: Final answer
    x = 2,054.65

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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.