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Finding the Fourth Proportional to 6,309.59, 8,685.38 and 6,080.00

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Solution

The fourth proportional to 6,309.59, 8,685.38 and 6,080.00 is: 8,369.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.59 : 8,685.38 = 6,080.00 : x
  2. Step 2: Convert to fraction form
    6,309.59/8,685.38 = 6,080.00/x
  3. Step 3: Cross multiply
    6,309.59x = 8,685.38 × 6,080.00
  4. Step 4: Simplify right side
    6,309.59x = 52,807,082.17
  5. Step 5: Solve for x
    x = 52,807,082.17/6,309.59
  6. Step 6: Final answer
    x = 8,369.34

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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.