Home / 1,831.64-2,527.22-1,085.78

Finding the Fourth Proportional to 1,831.64, 2,527.22 and 1,085.78

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Solution

The fourth proportional to 1,831.64, 2,527.22 and 1,085.78 is: 1,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.64 : 2,527.22 = 1,085.78 : x
  2. Step 2: Convert to fraction form
    1,831.64/2,527.22 = 1,085.78/x
  3. Step 3: Cross multiply
    1,831.64x = 2,527.22 × 1,085.78
  4. Step 4: Simplify right side
    1,831.64x = 2,743,986.87
  5. Step 5: Solve for x
    x = 2,743,986.87/1,831.64
  6. Step 6: Final answer
    x = 1,498.10

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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.