Home / 7,155.90-10,733.85-1,961.64

Finding the Fourth Proportional to 7,155.90, 10,733.85 and 1,961.64

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Solution

The fourth proportional to 7,155.90, 10,733.85 and 1,961.64 is: 2,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.90 : 10,733.85 = 1,961.64 : x
  2. Step 2: Convert to fraction form
    7,155.90/10,733.85 = 1,961.64/x
  3. Step 3: Cross multiply
    7,155.90x = 10,733.85 × 1,961.64
  4. Step 4: Simplify right side
    7,155.90x = 21,055,949.51
  5. Step 5: Solve for x
    x = 21,055,949.51/7,155.90
  6. Step 6: Final answer
    x = 2,942.46

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Similar ratio
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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.