Home / 3,887.32-5,831.90-1,113.92

Finding the Fourth Proportional to 3,887.32, 5,831.90 and 1,113.92

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Solution

The fourth proportional to 3,887.32, 5,831.90 and 1,113.92 is: 1,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.32 : 5,831.90 = 1,113.92 : x
  2. Step 2: Convert to fraction form
    3,887.32/5,831.90 = 1,113.92/x
  3. Step 3: Cross multiply
    3,887.32x = 5,831.90 × 1,113.92
  4. Step 4: Simplify right side
    3,887.32x = 6,496,270.05
  5. Step 5: Solve for x
    x = 6,496,270.05/3,887.32
  6. Step 6: Final answer
    x = 1,671.14

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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.