Home / 3,760.16-5,188.96-2,189.12

Finding the Fourth Proportional to 3,760.16, 5,188.96 and 2,189.12

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Solution

The fourth proportional to 3,760.16, 5,188.96 and 2,189.12 is: 3,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.16 : 5,188.96 = 2,189.12 : x
  2. Step 2: Convert to fraction form
    3,760.16/5,188.96 = 2,189.12/x
  3. Step 3: Cross multiply
    3,760.16x = 5,188.96 × 2,189.12
  4. Step 4: Simplify right side
    3,760.16x = 11,359,256.12
  5. Step 5: Solve for x
    x = 11,359,256.12/3,760.16
  6. Step 6: Final answer
    x = 3,020.95

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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.