Home / 2,844.15-3,923.38-1,781.69

Finding the Fourth Proportional to 2,844.15, 3,923.38 and 1,781.69

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Solution

The fourth proportional to 2,844.15, 3,923.38 and 1,781.69 is: 2,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,844.15 : 3,923.38 = 1,781.69 : x
  2. Step 2: Convert to fraction form
    2,844.15/3,923.38 = 1,781.69/x
  3. Step 3: Cross multiply
    2,844.15x = 3,923.38 × 1,781.69
  4. Step 4: Simplify right side
    2,844.15x = 6,990,235.55
  5. Step 5: Solve for x
    x = 6,990,235.55/2,844.15
  6. Step 6: Final answer
    x = 2,457.76

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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.