Home / 5,258.49-7,890.75-2,137.92

Finding the Fourth Proportional to 5,258.49, 7,890.75 and 2,137.92

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Solution

The fourth proportional to 5,258.49, 7,890.75 and 2,137.92 is: 3,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258.49 : 7,890.75 = 2,137.92 : x
  2. Step 2: Convert to fraction form
    5,258.49/7,890.75 = 2,137.92/x
  3. Step 3: Cross multiply
    5,258.49x = 7,890.75 × 2,137.92
  4. Step 4: Simplify right side
    5,258.49x = 16,869,792.24
  5. Step 5: Solve for x
    x = 16,869,792.24/5,258.49
  6. Step 6: Final answer
    x = 3,208.11

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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.