Home / 3,149.24-4,345.86-1,822.91

Finding the Fourth Proportional to 3,149.24, 4,345.86 and 1,822.91

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Solution

The fourth proportional to 3,149.24, 4,345.86 and 1,822.91 is: 2,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.24 : 4,345.86 = 1,822.91 : x
  2. Step 2: Convert to fraction form
    3,149.24/4,345.86 = 1,822.91/x
  3. Step 3: Cross multiply
    3,149.24x = 4,345.86 × 1,822.91
  4. Step 4: Simplify right side
    3,149.24x = 7,922,089.92
  5. Step 5: Solve for x
    x = 7,922,089.92/3,149.24
  6. Step 6: Final answer
    x = 2,515.56

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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.