Home / 1,924.60-2,655.91-1,138.90

Finding the Fourth Proportional to 1,924.60, 2,655.91 and 1,138.90

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Solution

The fourth proportional to 1,924.60, 2,655.91 and 1,138.90 is: 1,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.60 : 2,655.91 = 1,138.90 : x
  2. Step 2: Convert to fraction form
    1,924.60/2,655.91 = 1,138.90/x
  3. Step 3: Cross multiply
    1,924.60x = 2,655.91 × 1,138.90
  4. Step 4: Simplify right side
    1,924.60x = 3,024,815.90
  5. Step 5: Solve for x
    x = 3,024,815.90/1,924.60
  6. Step 6: Final answer
    x = 1,571.66

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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.