Home / 6,781.12-10,172.64-2,400.16

Finding the Fourth Proportional to 6,781.12, 10,172.64 and 2,400.16

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Solution

The fourth proportional to 6,781.12, 10,172.64 and 2,400.16 is: 3,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.12 : 10,172.64 = 2,400.16 : x
  2. Step 2: Convert to fraction form
    6,781.12/10,172.64 = 2,400.16/x
  3. Step 3: Cross multiply
    6,781.12x = 10,172.64 × 2,400.16
  4. Step 4: Simplify right side
    6,781.12x = 24,415,963.62
  5. Step 5: Solve for x
    x = 24,415,963.62/6,781.12
  6. Step 6: Final answer
    x = 3,600.58

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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.