Home / 3,903.90-5,388.12-2,332.86

Finding the Fourth Proportional to 3,903.90, 5,388.12 and 2,332.86

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Solution

The fourth proportional to 3,903.90, 5,388.12 and 2,332.86 is: 3,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.90 : 5,388.12 = 2,332.86 : x
  2. Step 2: Convert to fraction form
    3,903.90/5,388.12 = 2,332.86/x
  3. Step 3: Cross multiply
    3,903.90x = 5,388.12 × 2,332.86
  4. Step 4: Simplify right side
    3,903.90x = 12,569,729.62
  5. Step 5: Solve for x
    x = 12,569,729.62/3,903.90
  6. Step 6: Final answer
    x = 3,219.79

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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.