Home / 1,924.70-2,656.26-1,138.86

Finding the Fourth Proportional to 1,924.70, 2,656.26 and 1,138.86

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Solution

The fourth proportional to 1,924.70, 2,656.26 and 1,138.86 is: 1,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.70 : 2,656.26 = 1,138.86 : x
  2. Step 2: Convert to fraction form
    1,924.70/2,656.26 = 1,138.86/x
  3. Step 3: Cross multiply
    1,924.70x = 2,656.26 × 1,138.86
  4. Step 4: Simplify right side
    1,924.70x = 3,025,108.26
  5. Step 5: Solve for x
    x = 3,025,108.26/1,924.70
  6. Step 6: Final answer
    x = 1,571.73

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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.