Home / 6,745.14-10,117.71-2,128.50

Finding the Fourth Proportional to 6,745.14, 10,117.71 and 2,128.50

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Solution

The fourth proportional to 6,745.14, 10,117.71 and 2,128.50 is: 3,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.14 : 10,117.71 = 2,128.50 : x
  2. Step 2: Convert to fraction form
    6,745.14/10,117.71 = 2,128.50/x
  3. Step 3: Cross multiply
    6,745.14x = 10,117.71 × 2,128.50
  4. Step 4: Simplify right side
    6,745.14x = 21,535,545.74
  5. Step 5: Solve for x
    x = 21,535,545.74/6,745.14
  6. Step 6: Final answer
    x = 3,192.75

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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.