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Finding the Fourth Proportional to 6,919.08, 10,384.80 and 3,223.40

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Solution

The fourth proportional to 6,919.08, 10,384.80 and 3,223.40 is: 4,837.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.08 : 10,384.80 = 3,223.40 : x
  2. Step 2: Convert to fraction form
    6,919.08/10,384.80 = 3,223.40/x
  3. Step 3: Cross multiply
    6,919.08x = 10,384.80 × 3,223.40
  4. Step 4: Simplify right side
    6,919.08x = 33,474,312.40
  5. Step 5: Solve for x
    x = 33,474,312.40/6,919.08
  6. Step 6: Final answer
    x = 4,837.97

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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.