Home / 3,188.93-4,400.70-1,791.68

Finding the Fourth Proportional to 3,188.93, 4,400.70 and 1,791.68

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Solution

The fourth proportional to 3,188.93, 4,400.70 and 1,791.68 is: 2,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.93 : 4,400.70 = 1,791.68 : x
  2. Step 2: Convert to fraction form
    3,188.93/4,400.70 = 1,791.68/x
  3. Step 3: Cross multiply
    3,188.93x = 4,400.70 × 1,791.68
  4. Step 4: Simplify right side
    3,188.93x = 7,884,646.18
  5. Step 5: Solve for x
    x = 7,884,646.18/3,188.93
  6. Step 6: Final answer
    x = 2,472.51

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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.