Home / 1,361.07-2,031.62-1,245.65

Finding the Fourth Proportional to 1,361.07, 2,031.62 and 1,245.65

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Solution

The fourth proportional to 1,361.07, 2,031.62 and 1,245.65 is: 1,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.07 : 2,031.62 = 1,245.65 : x
  2. Step 2: Convert to fraction form
    1,361.07/2,031.62 = 1,245.65/x
  3. Step 3: Cross multiply
    1,361.07x = 2,031.62 × 1,245.65
  4. Step 4: Simplify right side
    1,361.07x = 2,530,671.07
  5. Step 5: Solve for x
    x = 2,530,671.07/1,361.07
  6. Step 6: Final answer
    x = 1,859.32

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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.