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Finding the Fourth Proportional to 6,606.16, 9,905 and 3,680.44

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Solution

The fourth proportional to 6,606.16, 9,905 and 3,680.44 is: 5,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.16 : 9,905 = 3,680.44 : x
  2. Step 2: Convert to fraction form
    6,606.16/9,905 = 3,680.44/x
  3. Step 3: Cross multiply
    6,606.16x = 9,905 × 3,680.44
  4. Step 4: Simplify right side
    6,606.16x = 36,454,758.20
  5. Step 5: Solve for x
    x = 36,454,758.20/6,606.16
  6. Step 6: Final answer
    x = 5,518.30

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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.