Home / 3,280.36-4,918.82-1,613.76

Finding the Fourth Proportional to 3,280.36, 4,918.82 and 1,613.76

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Solution

The fourth proportional to 3,280.36, 4,918.82 and 1,613.76 is: 2,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.36 : 4,918.82 = 1,613.76 : x
  2. Step 2: Convert to fraction form
    3,280.36/4,918.82 = 1,613.76/x
  3. Step 3: Cross multiply
    3,280.36x = 4,918.82 × 1,613.76
  4. Step 4: Simplify right side
    3,280.36x = 7,937,794.96
  5. Step 5: Solve for x
    x = 7,937,794.96/3,280.36
  6. Step 6: Final answer
    x = 2,419.79

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1.5x scale

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.