Home / 6,438.30-8,884.70-3,785.88

Finding the Fourth Proportional to 6,438.30, 8,884.70 and 3,785.88

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Solution

The fourth proportional to 6,438.30, 8,884.70 and 3,785.88 is: 5,224.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.30 : 8,884.70 = 3,785.88 : x
  2. Step 2: Convert to fraction form
    6,438.30/8,884.70 = 3,785.88/x
  3. Step 3: Cross multiply
    6,438.30x = 8,884.70 × 3,785.88
  4. Step 4: Simplify right side
    6,438.30x = 33,636,408.04
  5. Step 5: Solve for x
    x = 33,636,408.04/6,438.30
  6. Step 6: Final answer
    x = 5,224.42

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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.