Home / 6,430.39-9,644.97-3,308.75

Finding the Fourth Proportional to 6,430.39, 9,644.97 and 3,308.75

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Solution

The fourth proportional to 6,430.39, 9,644.97 and 3,308.75 is: 4,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.39 : 9,644.97 = 3,308.75 : x
  2. Step 2: Convert to fraction form
    6,430.39/9,644.97 = 3,308.75/x
  3. Step 3: Cross multiply
    6,430.39x = 9,644.97 × 3,308.75
  4. Step 4: Simplify right side
    6,430.39x = 31,912,794.84
  5. Step 5: Solve for x
    x = 31,912,794.84/6,430.39
  6. Step 6: Final answer
    x = 4,962.81

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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.