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Finding the Fourth Proportional to 6,612.95, 9,919.46 and 2,666.03

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Solution

The fourth proportional to 6,612.95, 9,919.46 and 2,666.03 is: 3,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.95 : 9,919.46 = 2,666.03 : x
  2. Step 2: Convert to fraction form
    6,612.95/9,919.46 = 2,666.03/x
  3. Step 3: Cross multiply
    6,612.95x = 9,919.46 × 2,666.03
  4. Step 4: Simplify right side
    6,612.95x = 26,445,515.02
  5. Step 5: Solve for x
    x = 26,445,515.02/6,612.95
  6. Step 6: Final answer
    x = 3,999.05

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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.