Home / 1,342.44-2,002.50-1,138.32

Finding the Fourth Proportional to 1,342.44, 2,002.50 and 1,138.32

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Solution

The fourth proportional to 1,342.44, 2,002.50 and 1,138.32 is: 1,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.44 : 2,002.50 = 1,138.32 : x
  2. Step 2: Convert to fraction form
    1,342.44/2,002.50 = 1,138.32/x
  3. Step 3: Cross multiply
    1,342.44x = 2,002.50 × 1,138.32
  4. Step 4: Simplify right side
    1,342.44x = 2,279,485.80
  5. Step 5: Solve for x
    x = 2,279,485.80/1,342.44
  6. Step 6: Final answer
    x = 1,698.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.