Home / 3,742.81-5,165.69-2,251.55

Finding the Fourth Proportional to 3,742.81, 5,165.69 and 2,251.55

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Solution

The fourth proportional to 3,742.81, 5,165.69 and 2,251.55 is: 3,107.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.81 : 5,165.69 = 2,251.55 : x
  2. Step 2: Convert to fraction form
    3,742.81/5,165.69 = 2,251.55/x
  3. Step 3: Cross multiply
    3,742.81x = 5,165.69 × 2,251.55
  4. Step 4: Simplify right side
    3,742.81x = 11,630,809.32
  5. Step 5: Solve for x
    x = 11,630,809.32/3,742.81
  6. Step 6: Final answer
    x = 3,107.51

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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.