Home / 2,745.50-4,118.79-1,407.92

Finding the Fourth Proportional to 2,745.50, 4,118.79 and 1,407.92

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Solution

The fourth proportional to 2,745.50, 4,118.79 and 1,407.92 is: 2,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.50 : 4,118.79 = 1,407.92 : x
  2. Step 2: Convert to fraction form
    2,745.50/4,118.79 = 1,407.92/x
  3. Step 3: Cross multiply
    2,745.50x = 4,118.79 × 1,407.92
  4. Step 4: Simplify right side
    2,745.50x = 5,798,926.82
  5. Step 5: Solve for x
    x = 5,798,926.82/2,745.50
  6. Step 6: Final answer
    x = 2,112.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.