Home / 1,831.31-2,741.58-1,135.75

Finding the Fourth Proportional to 1,831.31, 2,741.58 and 1,135.75

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Solution

The fourth proportional to 1,831.31, 2,741.58 and 1,135.75 is: 1,700.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.31 : 2,741.58 = 1,135.75 : x
  2. Step 2: Convert to fraction form
    1,831.31/2,741.58 = 1,135.75/x
  3. Step 3: Cross multiply
    1,831.31x = 2,741.58 × 1,135.75
  4. Step 4: Simplify right side
    1,831.31x = 3,113,749.49
  5. Step 5: Solve for x
    x = 3,113,749.49/1,831.31
  6. Step 6: Final answer
    x = 1,700.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.