Home / 6,425.05-8,866.52-3,906.70

Finding the Fourth Proportional to 6,425.05, 8,866.52 and 3,906.70

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Solution

The fourth proportional to 6,425.05, 8,866.52 and 3,906.70 is: 5,391.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.05 : 8,866.52 = 3,906.70 : x
  2. Step 2: Convert to fraction form
    6,425.05/8,866.52 = 3,906.70/x
  3. Step 3: Cross multiply
    6,425.05x = 8,866.52 × 3,906.70
  4. Step 4: Simplify right side
    6,425.05x = 34,638,828.08
  5. Step 5: Solve for x
    x = 34,638,828.08/6,425.05
  6. Step 6: Final answer
    x = 5,391.21

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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.