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Finding the Fourth Proportional to 6,690.60, 9,233.03 and 3,706.45

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Solution

The fourth proportional to 6,690.60, 9,233.03 and 3,706.45 is: 5,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.60 : 9,233.03 = 3,706.45 : x
  2. Step 2: Convert to fraction form
    6,690.60/9,233.03 = 3,706.45/x
  3. Step 3: Cross multiply
    6,690.60x = 9,233.03 × 3,706.45
  4. Step 4: Simplify right side
    6,690.60x = 34,221,764.04
  5. Step 5: Solve for x
    x = 34,221,764.04/6,690.60
  6. Step 6: Final answer
    x = 5,114.90

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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.