Home / 1,786.20-2,462.80-1,537.08

Finding the Fourth Proportional to 1,786.20, 2,462.80 and 1,537.08

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Solution

The fourth proportional to 1,786.20, 2,462.80 and 1,537.08 is: 2,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.20 : 2,462.80 = 1,537.08 : x
  2. Step 2: Convert to fraction form
    1,786.20/2,462.80 = 1,537.08/x
  3. Step 3: Cross multiply
    1,786.20x = 2,462.80 × 1,537.08
  4. Step 4: Simplify right side
    1,786.20x = 3,785,512.94
  5. Step 5: Solve for x
    x = 3,785,512.94/1,786.20
  6. Step 6: Final answer
    x = 2,119.32

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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.