Home / 5,144.57-7,099.47-2,786.66

Finding the Fourth Proportional to 5,144.57, 7,099.47 and 2,786.66

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Solution

The fourth proportional to 5,144.57, 7,099.47 and 2,786.66 is: 3,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.57 : 7,099.47 = 2,786.66 : x
  2. Step 2: Convert to fraction form
    5,144.57/7,099.47 = 2,786.66/x
  3. Step 3: Cross multiply
    5,144.57x = 7,099.47 × 2,786.66
  4. Step 4: Simplify right side
    5,144.57x = 19,783,809.07
  5. Step 5: Solve for x
    x = 19,783,809.07/5,144.57
  6. Step 6: Final answer
    x = 3,845.57

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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.