Home / 5,360.09-7,396.70-3,121.95

Finding the Fourth Proportional to 5,360.09, 7,396.70 and 3,121.95

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Solution

The fourth proportional to 5,360.09, 7,396.70 and 3,121.95 is: 4,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.09 : 7,396.70 = 3,121.95 : x
  2. Step 2: Convert to fraction form
    5,360.09/7,396.70 = 3,121.95/x
  3. Step 3: Cross multiply
    5,360.09x = 7,396.70 × 3,121.95
  4. Step 4: Simplify right side
    5,360.09x = 23,092,139.69
  5. Step 5: Solve for x
    x = 23,092,139.69/5,360.09
  6. Step 6: Final answer
    x = 4,308.17

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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.