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Finding the Fourth Proportional to 7,902.90, 10,892.88 and 5,540.94

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Solution

The fourth proportional to 7,902.90, 10,892.88 and 5,540.94 is: 7,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.90 : 10,892.88 = 5,540.94 : x
  2. Step 2: Convert to fraction form
    7,902.90/10,892.88 = 5,540.94/x
  3. Step 3: Cross multiply
    7,902.90x = 10,892.88 × 5,540.94
  4. Step 4: Simplify right side
    7,902.90x = 60,356,794.51
  5. Step 5: Solve for x
    x = 60,356,794.51/7,902.90
  6. Step 6: Final answer
    x = 7,637.30

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1.5x scale

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.