Home / 3,149.22-4,725.66-2,980.32

Finding the Fourth Proportional to 3,149.22, 4,725.66 and 2,980.32

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Solution

The fourth proportional to 3,149.22, 4,725.66 and 2,980.32 is: 4,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.22 : 4,725.66 = 2,980.32 : x
  2. Step 2: Convert to fraction form
    3,149.22/4,725.66 = 2,980.32/x
  3. Step 3: Cross multiply
    3,149.22x = 4,725.66 × 2,980.32
  4. Step 4: Simplify right side
    3,149.22x = 14,083,979.01
  5. Step 5: Solve for x
    x = 14,083,979.01/3,149.22
  6. Step 6: Final answer
    x = 4,472.21

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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.