Home / 7,155.36-10,732.91-1,961.23

Finding the Fourth Proportional to 7,155.36, 10,732.91 and 1,961.23

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Solution

The fourth proportional to 7,155.36, 10,732.91 and 1,961.23 is: 2,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.36 : 10,732.91 = 1,961.23 : x
  2. Step 2: Convert to fraction form
    7,155.36/10,732.91 = 1,961.23/x
  3. Step 3: Cross multiply
    7,155.36x = 10,732.91 × 1,961.23
  4. Step 4: Simplify right side
    7,155.36x = 21,049,705.08
  5. Step 5: Solve for x
    x = 21,049,705.08/7,155.36
  6. Step 6: Final answer
    x = 2,941.81

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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.