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Finding the Fourth Proportional to 6,451.78, 8,902.46 and 3,619.30

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Solution

The fourth proportional to 6,451.78, 8,902.46 and 3,619.30 is: 4,994.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.78 : 8,902.46 = 3,619.30 : x
  2. Step 2: Convert to fraction form
    6,451.78/8,902.46 = 3,619.30/x
  3. Step 3: Cross multiply
    6,451.78x = 8,902.46 × 3,619.30
  4. Step 4: Simplify right side
    6,451.78x = 32,220,673.48
  5. Step 5: Solve for x
    x = 32,220,673.48/6,451.78
  6. Step 6: Final answer
    x = 4,994.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.