Home / 6,690.09-9,232.85-3,706.20

Finding the Fourth Proportional to 6,690.09, 9,232.85 and 3,706.20

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Solution

The fourth proportional to 6,690.09, 9,232.85 and 3,706.20 is: 5,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.09 : 9,232.85 = 3,706.20 : x
  2. Step 2: Convert to fraction form
    6,690.09/9,232.85 = 3,706.20/x
  3. Step 3: Cross multiply
    6,690.09x = 9,232.85 × 3,706.20
  4. Step 4: Simplify right side
    6,690.09x = 34,218,770.14
  5. Step 5: Solve for x
    x = 34,218,770.14/6,690.09
  6. Step 6: Final answer
    x = 5,114.84

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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.