Home / 3,165.28-4,749.84-1,316.56

Finding the Fourth Proportional to 3,165.28, 4,749.84 and 1,316.56

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Solution

The fourth proportional to 3,165.28, 4,749.84 and 1,316.56 is: 1,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.28 : 4,749.84 = 1,316.56 : x
  2. Step 2: Convert to fraction form
    3,165.28/4,749.84 = 1,316.56/x
  3. Step 3: Cross multiply
    3,165.28x = 4,749.84 × 1,316.56
  4. Step 4: Simplify right side
    3,165.28x = 6,253,449.35
  5. Step 5: Solve for x
    x = 6,253,449.35/3,165.28
  6. Step 6: Final answer
    x = 1,975.64

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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.