Home / 3,005.31-4,148.94-2,012.28

Finding the Fourth Proportional to 3,005.31, 4,148.94 and 2,012.28

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Solution

The fourth proportional to 3,005.31, 4,148.94 and 2,012.28 is: 2,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.31 : 4,148.94 = 2,012.28 : x
  2. Step 2: Convert to fraction form
    3,005.31/4,148.94 = 2,012.28/x
  3. Step 3: Cross multiply
    3,005.31x = 4,148.94 × 2,012.28
  4. Step 4: Simplify right side
    3,005.31x = 8,348,818.92
  5. Step 5: Solve for x
    x = 8,348,818.92/3,005.31
  6. Step 6: Final answer
    x = 2,778.02

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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.