Home / 3,890.42-5,831.82-1,549.71

Finding the Fourth Proportional to 3,890.42, 5,831.82 and 1,549.71

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Solution

The fourth proportional to 3,890.42, 5,831.82 and 1,549.71 is: 2,323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.42 : 5,831.82 = 1,549.71 : x
  2. Step 2: Convert to fraction form
    3,890.42/5,831.82 = 1,549.71/x
  3. Step 3: Cross multiply
    3,890.42x = 5,831.82 × 1,549.71
  4. Step 4: Simplify right side
    3,890.42x = 9,037,629.77
  5. Step 5: Solve for x
    x = 9,037,629.77/3,890.42
  6. Step 6: Final answer
    x = 2,323.05

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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.