Home / 1,924.92-2,656.20-1,138.80

Finding the Fourth Proportional to 1,924.92, 2,656.20 and 1,138.80

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Solution

The fourth proportional to 1,924.92, 2,656.20 and 1,138.80 is: 1,571.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.92 : 2,656.20 = 1,138.80 : x
  2. Step 2: Convert to fraction form
    1,924.92/2,656.20 = 1,138.80/x
  3. Step 3: Cross multiply
    1,924.92x = 2,656.20 × 1,138.80
  4. Step 4: Simplify right side
    1,924.92x = 3,024,880.56
  5. Step 5: Solve for x
    x = 3,024,880.56/1,924.92
  6. Step 6: Final answer
    x = 1,571.43

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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.