Home / 3,161.43-4,738.45-2,378.92

Finding the Fourth Proportional to 3,161.43, 4,738.45 and 2,378.92

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Solution

The fourth proportional to 3,161.43, 4,738.45 and 2,378.92 is: 3,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.43 : 4,738.45 = 2,378.92 : x
  2. Step 2: Convert to fraction form
    3,161.43/4,738.45 = 2,378.92/x
  3. Step 3: Cross multiply
    3,161.43x = 4,738.45 × 2,378.92
  4. Step 4: Simplify right side
    3,161.43x = 11,272,393.47
  5. Step 5: Solve for x
    x = 11,272,393.47/3,161.43
  6. Step 6: Final answer
    x = 3,565.60

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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.