Home / 3,920.02-5,404.39-3,358.08

Finding the Fourth Proportional to 3,920.02, 5,404.39 and 3,358.08

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Solution

The fourth proportional to 3,920.02, 5,404.39 and 3,358.08 is: 4,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.02 : 5,404.39 = 3,358.08 : x
  2. Step 2: Convert to fraction form
    3,920.02/5,404.39 = 3,358.08/x
  3. Step 3: Cross multiply
    3,920.02x = 5,404.39 × 3,358.08
  4. Step 4: Simplify right side
    3,920.02x = 18,148,365.58
  5. Step 5: Solve for x
    x = 18,148,365.58/3,920.02
  6. Step 6: Final answer
    x = 4,629.66

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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.