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Finding the Fourth Proportional to 7,258.06, 10,890.06 and 2,578.96

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Solution

The fourth proportional to 7,258.06, 10,890.06 and 2,578.96 is: 3,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.06 : 10,890.06 = 2,578.96 : x
  2. Step 2: Convert to fraction form
    7,258.06/10,890.06 = 2,578.96/x
  3. Step 3: Cross multiply
    7,258.06x = 10,890.06 × 2,578.96
  4. Step 4: Simplify right side
    7,258.06x = 28,085,029.14
  5. Step 5: Solve for x
    x = 28,085,029.14/7,258.06
  6. Step 6: Final answer
    x = 3,869.50

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1.5x scale

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.