Home / 3,513.06-5,267.97-1,320.12

Finding the Fourth Proportional to 3,513.06, 5,267.97 and 1,320.12

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Solution

The fourth proportional to 3,513.06, 5,267.97 and 1,320.12 is: 1,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.06 : 5,267.97 = 1,320.12 : x
  2. Step 2: Convert to fraction form
    3,513.06/5,267.97 = 1,320.12/x
  3. Step 3: Cross multiply
    3,513.06x = 5,267.97 × 1,320.12
  4. Step 4: Simplify right side
    3,513.06x = 6,954,352.56
  5. Step 5: Solve for x
    x = 6,954,352.56/3,513.06
  6. Step 6: Final answer
    x = 1,979.57

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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.