Home / 5,669.75-7,824.24-3,151.78

Finding the Fourth Proportional to 5,669.75, 7,824.24 and 3,151.78

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Solution

The fourth proportional to 5,669.75, 7,824.24 and 3,151.78 is: 4,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.75 : 7,824.24 = 3,151.78 : x
  2. Step 2: Convert to fraction form
    5,669.75/7,824.24 = 3,151.78/x
  3. Step 3: Cross multiply
    5,669.75x = 7,824.24 × 3,151.78
  4. Step 4: Simplify right side
    5,669.75x = 24,660,283.15
  5. Step 5: Solve for x
    x = 24,660,283.15/5,669.75
  6. Step 6: Final answer
    x = 4,349.45

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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.