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Finding the Fourth Proportional to 6,662.70, 9,994.05 and 5,280.30

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Solution

The fourth proportional to 6,662.70, 9,994.05 and 5,280.30 is: 7,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662.70 : 9,994.05 = 5,280.30 : x
  2. Step 2: Convert to fraction form
    6,662.70/9,994.05 = 5,280.30/x
  3. Step 3: Cross multiply
    6,662.70x = 9,994.05 × 5,280.30
  4. Step 4: Simplify right side
    6,662.70x = 52,771,582.22
  5. Step 5: Solve for x
    x = 52,771,582.22/6,662.70
  6. Step 6: Final answer
    x = 7,920.45

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Similar ratio
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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.