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Finding the Fourth Proportional to 6,145.77, 9,210.15 and 3,369.09

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Solution

The fourth proportional to 6,145.77, 9,210.15 and 3,369.09 is: 5,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.77 : 9,210.15 = 3,369.09 : x
  2. Step 2: Convert to fraction form
    6,145.77/9,210.15 = 3,369.09/x
  3. Step 3: Cross multiply
    6,145.77x = 9,210.15 × 3,369.09
  4. Step 4: Simplify right side
    6,145.77x = 31,029,824.26
  5. Step 5: Solve for x
    x = 31,029,824.26/6,145.77
  6. Step 6: Final answer
    x = 5,048.97

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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.