Home / 3,190.79-4,403.22-1,864.82

Finding the Fourth Proportional to 3,190.79, 4,403.22 and 1,864.82

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Solution

The fourth proportional to 3,190.79, 4,403.22 and 1,864.82 is: 2,573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.79 : 4,403.22 = 1,864.82 : x
  2. Step 2: Convert to fraction form
    3,190.79/4,403.22 = 1,864.82/x
  3. Step 3: Cross multiply
    3,190.79x = 4,403.22 × 1,864.82
  4. Step 4: Simplify right side
    3,190.79x = 8,211,212.72
  5. Step 5: Solve for x
    x = 8,211,212.72/3,190.79
  6. Step 6: Final answer
    x = 2,573.41

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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.