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Finding the Fourth Proportional to 6,963.25, 9,609.30 and 4,130.79

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Solution

The fourth proportional to 6,963.25, 9,609.30 and 4,130.79 is: 5,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,963.25 : 9,609.30 = 4,130.79 : x
  2. Step 2: Convert to fraction form
    6,963.25/9,609.30 = 4,130.79/x
  3. Step 3: Cross multiply
    6,963.25x = 9,609.30 × 4,130.79
  4. Step 4: Simplify right side
    6,963.25x = 39,694,000.35
  5. Step 5: Solve for x
    x = 39,694,000.35/6,963.25
  6. Step 6: Final answer
    x = 5,700.50

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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.