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Finding the Fourth Proportional to 7,273.90, 10,908.15 and 2,890.45

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Solution

The fourth proportional to 7,273.90, 10,908.15 and 2,890.45 is: 4,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.90 : 10,908.15 = 2,890.45 : x
  2. Step 2: Convert to fraction form
    7,273.90/10,908.15 = 2,890.45/x
  3. Step 3: Cross multiply
    7,273.90x = 10,908.15 × 2,890.45
  4. Step 4: Simplify right side
    7,273.90x = 31,529,462.17
  5. Step 5: Solve for x
    x = 31,529,462.17/7,273.90
  6. Step 6: Final answer
    x = 4,334.60

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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.