Home / 2,840.43-3,919.01-1,831.71

Finding the Fourth Proportional to 2,840.43, 3,919.01 and 1,831.71

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Solution

The fourth proportional to 2,840.43, 3,919.01 and 1,831.71 is: 2,527.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.43 : 3,919.01 = 1,831.71 : x
  2. Step 2: Convert to fraction form
    2,840.43/3,919.01 = 1,831.71/x
  3. Step 3: Cross multiply
    2,840.43x = 3,919.01 × 1,831.71
  4. Step 4: Simplify right side
    2,840.43x = 7,178,480.65
  5. Step 5: Solve for x
    x = 7,178,480.65/2,840.43
  6. Step 6: Final answer
    x = 2,527.25

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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.