Home / 4,100.43-6,150.71-1,289.17

Finding the Fourth Proportional to 4,100.43, 6,150.71 and 1,289.17

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Solution

The fourth proportional to 4,100.43, 6,150.71 and 1,289.17 is: 1,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,100.43 : 6,150.71 = 1,289.17 : x
  2. Step 2: Convert to fraction form
    4,100.43/6,150.71 = 1,289.17/x
  3. Step 3: Cross multiply
    4,100.43x = 6,150.71 × 1,289.17
  4. Step 4: Simplify right side
    4,100.43x = 7,929,319.74
  5. Step 5: Solve for x
    x = 7,929,319.74/4,100.43
  6. Step 6: Final answer
    x = 1,933.78

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1.5x scale

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.