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Finding the Fourth Proportional to 4,266.90, 6,384.15 and 2,808.90

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Solution

The fourth proportional to 4,266.90, 6,384.15 and 2,808.90 is: 4,202.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,266.90 : 6,384.15 = 2,808.90 : x
  2. Step 2: Convert to fraction form
    4,266.90/6,384.15 = 2,808.90/x
  3. Step 3: Cross multiply
    4,266.90x = 6,384.15 × 2,808.90
  4. Step 4: Simplify right side
    4,266.90x = 17,932,438.94
  5. Step 5: Solve for x
    x = 17,932,438.94/4,266.90
  6. Step 6: Final answer
    x = 4,202.69

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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.