Home / 1,924.24-2,655.84-1,138.72

Finding the Fourth Proportional to 1,924.24, 2,655.84 and 1,138.72

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Solution

The fourth proportional to 1,924.24, 2,655.84 and 1,138.72 is: 1,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.24 : 2,655.84 = 1,138.72 : x
  2. Step 2: Convert to fraction form
    1,924.24/2,655.84 = 1,138.72/x
  3. Step 3: Cross multiply
    1,924.24x = 2,655.84 × 1,138.72
  4. Step 4: Simplify right side
    1,924.24x = 3,024,258.12
  5. Step 5: Solve for x
    x = 3,024,258.12/1,924.24
  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.