Home / 3,720.26-5,133.06-2,148.36

Finding the Fourth Proportional to 3,720.26, 5,133.06 and 2,148.36

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Solution

The fourth proportional to 3,720.26, 5,133.06 and 2,148.36 is: 2,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.26 : 5,133.06 = 2,148.36 : x
  2. Step 2: Convert to fraction form
    3,720.26/5,133.06 = 2,148.36/x
  3. Step 3: Cross multiply
    3,720.26x = 5,133.06 × 2,148.36
  4. Step 4: Simplify right side
    3,720.26x = 11,027,660.78
  5. Step 5: Solve for x
    x = 11,027,660.78/3,720.26
  6. Step 6: Final answer
    x = 2,964.22

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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.