Home / 6,942.69-10,412.97-2,781.62

Finding the Fourth Proportional to 6,942.69, 10,412.97 and 2,781.62

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Solution

The fourth proportional to 6,942.69, 10,412.97 and 2,781.62 is: 4,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.69 : 10,412.97 = 2,781.62 : x
  2. Step 2: Convert to fraction form
    6,942.69/10,412.97 = 2,781.62/x
  3. Step 3: Cross multiply
    6,942.69x = 10,412.97 × 2,781.62
  4. Step 4: Simplify right side
    6,942.69x = 28,964,925.61
  5. Step 5: Solve for x
    x = 28,964,925.61/6,942.69
  6. Step 6: Final answer
    x = 4,172.00

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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.