Home / 5,920.75-8,878.54-3,146.75

Finding the Fourth Proportional to 5,920.75, 8,878.54 and 3,146.75

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Solution

The fourth proportional to 5,920.75, 8,878.54 and 3,146.75 is: 4,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.75 : 8,878.54 = 3,146.75 : x
  2. Step 2: Convert to fraction form
    5,920.75/8,878.54 = 3,146.75/x
  3. Step 3: Cross multiply
    5,920.75x = 8,878.54 × 3,146.75
  4. Step 4: Simplify right side
    5,920.75x = 27,938,560.07
  5. Step 5: Solve for x
    x = 27,938,560.07/5,920.75
  6. Step 6: Final answer
    x = 4,718.76

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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.