Home / 3,228.38-4,455.16-1,831.13

Finding the Fourth Proportional to 3,228.38, 4,455.16 and 1,831.13

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Solution

The fourth proportional to 3,228.38, 4,455.16 and 1,831.13 is: 2,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.38 : 4,455.16 = 1,831.13 : x
  2. Step 2: Convert to fraction form
    3,228.38/4,455.16 = 1,831.13/x
  3. Step 3: Cross multiply
    3,228.38x = 4,455.16 × 1,831.13
  4. Step 4: Simplify right side
    3,228.38x = 8,157,977.13
  5. Step 5: Solve for x
    x = 8,157,977.13/3,228.38
  6. Step 6: Final answer
    x = 2,526.96

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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.