Home / 2,772.39-3,825.87-1,513.45

Finding the Fourth Proportional to 2,772.39, 3,825.87 and 1,513.45

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Solution

The fourth proportional to 2,772.39, 3,825.87 and 1,513.45 is: 2,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.39 : 3,825.87 = 1,513.45 : x
  2. Step 2: Convert to fraction form
    2,772.39/3,825.87 = 1,513.45/x
  3. Step 3: Cross multiply
    2,772.39x = 3,825.87 × 1,513.45
  4. Step 4: Simplify right side
    2,772.39x = 5,790,262.06
  5. Step 5: Solve for x
    x = 5,790,262.06/2,772.39
  6. Step 6: Final answer
    x = 2,088.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.