Home / 7,210-9,949.90-4,066.19

Finding the Fourth Proportional to 7,210, 9,949.90 and 4,066.19

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Solution

The fourth proportional to 7,210, 9,949.90 and 4,066.19 is: 5,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210 : 9,949.90 = 4,066.19 : x
  2. Step 2: Convert to fraction form
    7,210/9,949.90 = 4,066.19/x
  3. Step 3: Cross multiply
    7,210x = 9,949.90 × 4,066.19
  4. Step 4: Simplify right side
    7,210x = 40,458,183.88
  5. Step 5: Solve for x
    x = 40,458,183.88/7,210
  6. Step 6: Final answer
    x = 5,611.40

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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.