Home / 4,149.12-5,720.40-3,438.36

Finding the Fourth Proportional to 4,149.12, 5,720.40 and 3,438.36

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Solution

The fourth proportional to 4,149.12, 5,720.40 and 3,438.36 is: 4,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149.12 : 5,720.40 = 3,438.36 : x
  2. Step 2: Convert to fraction form
    4,149.12/5,720.40 = 3,438.36/x
  3. Step 3: Cross multiply
    4,149.12x = 5,720.40 × 3,438.36
  4. Step 4: Simplify right side
    4,149.12x = 19,668,794.54
  5. Step 5: Solve for x
    x = 19,668,794.54/4,149.12
  6. Step 6: Final answer
    x = 4,740.47

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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.