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Finding the Fourth Proportional to 6,309.50, 8,707.07 and 3,476.90

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Solution

The fourth proportional to 6,309.50, 8,707.07 and 3,476.90 is: 4,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.50 : 8,707.07 = 3,476.90 : x
  2. Step 2: Convert to fraction form
    6,309.50/8,707.07 = 3,476.90/x
  3. Step 3: Cross multiply
    6,309.50x = 8,707.07 × 3,476.90
  4. Step 4: Simplify right side
    6,309.50x = 30,273,642.14
  5. Step 5: Solve for x
    x = 30,273,642.14/6,309.50
  6. Step 6: Final answer
    x = 4,798.11

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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.