Home / 3,012.62-4,515.43-1,781.06

Finding the Fourth Proportional to 3,012.62, 4,515.43 and 1,781.06

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Solution

The fourth proportional to 3,012.62, 4,515.43 and 1,781.06 is: 2,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.62 : 4,515.43 = 1,781.06 : x
  2. Step 2: Convert to fraction form
    3,012.62/4,515.43 = 1,781.06/x
  3. Step 3: Cross multiply
    3,012.62x = 4,515.43 × 1,781.06
  4. Step 4: Simplify right side
    3,012.62x = 8,042,251.76
  5. Step 5: Solve for x
    x = 8,042,251.76/3,012.62
  6. Step 6: Final answer
    x = 2,669.52

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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.