Home / 3,757.28-5,184.48-2,142.19

Finding the Fourth Proportional to 3,757.28, 5,184.48 and 2,142.19

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Solution

The fourth proportional to 3,757.28, 5,184.48 and 2,142.19 is: 2,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,757.28 : 5,184.48 = 2,142.19 : x
  2. Step 2: Convert to fraction form
    3,757.28/5,184.48 = 2,142.19/x
  3. Step 3: Cross multiply
    3,757.28x = 5,184.48 × 2,142.19
  4. Step 4: Simplify right side
    3,757.28x = 11,106,141.21
  5. Step 5: Solve for x
    x = 11,106,141.21/3,757.28
  6. Step 6: Final answer
    x = 2,955.90

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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.