Home / 3,380.81-5,067.03-1,531.40

Finding the Fourth Proportional to 3,380.81, 5,067.03 and 1,531.40

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Solution

The fourth proportional to 3,380.81, 5,067.03 and 1,531.40 is: 2,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.81 : 5,067.03 = 1,531.40 : x
  2. Step 2: Convert to fraction form
    3,380.81/5,067.03 = 1,531.40/x
  3. Step 3: Cross multiply
    3,380.81x = 5,067.03 × 1,531.40
  4. Step 4: Simplify right side
    3,380.81x = 7,759,649.74
  5. Step 5: Solve for x
    x = 7,759,649.74/3,380.81
  6. Step 6: Final answer
    x = 2,295.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.