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Finding the Fourth Proportional to 4,989.48, 7,497.92 and 4,664.43

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Solution

The fourth proportional to 4,989.48, 7,497.92 and 4,664.43 is: 7,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.48 : 7,497.92 = 4,664.43 : x
  2. Step 2: Convert to fraction form
    4,989.48/7,497.92 = 4,664.43/x
  3. Step 3: Cross multiply
    4,989.48x = 7,497.92 × 4,664.43
  4. Step 4: Simplify right side
    4,989.48x = 34,973,522.99
  5. Step 5: Solve for x
    x = 34,973,522.99/4,989.48
  6. Step 6: Final answer
    x = 7,009.45

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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.