Home / 6,434.25-8,880.50-3,639.75

Finding the Fourth Proportional to 6,434.25, 8,880.50 and 3,639.75

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Solution

The fourth proportional to 6,434.25, 8,880.50 and 3,639.75 is: 5,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.25 : 8,880.50 = 3,639.75 : x
  2. Step 2: Convert to fraction form
    6,434.25/8,880.50 = 3,639.75/x
  3. Step 3: Cross multiply
    6,434.25x = 8,880.50 × 3,639.75
  4. Step 4: Simplify right side
    6,434.25x = 32,322,781.68
  5. Step 5: Solve for x
    x = 32,322,781.68/6,434.25
  6. Step 6: Final answer
    x = 5,023.55

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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.