Home / 3,736.40-5,150.16-2,987.96

Finding the Fourth Proportional to 3,736.40, 5,150.16 and 2,987.96

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Solution

The fourth proportional to 3,736.40, 5,150.16 and 2,987.96 is: 4,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,736.40 : 5,150.16 = 2,987.96 : x
  2. Step 2: Convert to fraction form
    3,736.40/5,150.16 = 2,987.96/x
  3. Step 3: Cross multiply
    3,736.40x = 5,150.16 × 2,987.96
  4. Step 4: Simplify right side
    3,736.40x = 15,388,472.07
  5. Step 5: Solve for x
    x = 15,388,472.07/3,736.40
  6. Step 6: Final answer
    x = 4,118.53

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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.