Home / 3,005.40-4,150.29-2,841.78

Finding the Fourth Proportional to 3,005.40, 4,150.29 and 2,841.78

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Solution

The fourth proportional to 3,005.40, 4,150.29 and 2,841.78 is: 3,924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.40 : 4,150.29 = 2,841.78 : x
  2. Step 2: Convert to fraction form
    3,005.40/4,150.29 = 2,841.78/x
  3. Step 3: Cross multiply
    3,005.40x = 4,150.29 × 2,841.78
  4. Step 4: Simplify right side
    3,005.40x = 11,794,211.12
  5. Step 5: Solve for x
    x = 11,794,211.12/3,005.40
  6. Step 6: Final answer
    x = 3,924.34

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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.