Home / 2,650.16-3,975.24-1,189.28

Finding the Fourth Proportional to 2,650.16, 3,975.24 and 1,189.28

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Solution

The fourth proportional to 2,650.16, 3,975.24 and 1,189.28 is: 1,783.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.16 : 3,975.24 = 1,189.28 : x
  2. Step 2: Convert to fraction form
    2,650.16/3,975.24 = 1,189.28/x
  3. Step 3: Cross multiply
    2,650.16x = 3,975.24 × 1,189.28
  4. Step 4: Simplify right side
    2,650.16x = 4,727,673.43
  5. Step 5: Solve for x
    x = 4,727,673.43/2,650.16
  6. Step 6: Final answer
    x = 1,783.92

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Double scale
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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.