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Finding the Fourth Proportional to 6,107.80, 9,168.90 and 3,477.40

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Solution

The fourth proportional to 6,107.80, 9,168.90 and 3,477.40 is: 5,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.80 : 9,168.90 = 3,477.40 : x
  2. Step 2: Convert to fraction form
    6,107.80/9,168.90 = 3,477.40/x
  3. Step 3: Cross multiply
    6,107.80x = 9,168.90 × 3,477.40
  4. Step 4: Simplify right side
    6,107.80x = 31,883,932.86
  5. Step 5: Solve for x
    x = 31,883,932.86/6,107.80
  6. Step 6: Final answer
    x = 5,220.20

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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.