Home / 3,149.09-4,345.55-1,732.49

Finding the Fourth Proportional to 3,149.09, 4,345.55 and 1,732.49

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Solution

The fourth proportional to 3,149.09, 4,345.55 and 1,732.49 is: 2,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.09 : 4,345.55 = 1,732.49 : x
  2. Step 2: Convert to fraction form
    3,149.09/4,345.55 = 1,732.49/x
  3. Step 3: Cross multiply
    3,149.09x = 4,345.55 × 1,732.49
  4. Step 4: Simplify right side
    3,149.09x = 7,528,621.92
  5. Step 5: Solve for x
    x = 7,528,621.92/3,149.09
  6. Step 6: Final answer
    x = 2,390.73

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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.