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Finding the Fourth Proportional to 4,901.54, 7,347.41 and 1,981.48

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Solution

The fourth proportional to 4,901.54, 7,347.41 and 1,981.48 is: 2,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.54 : 7,347.41 = 1,981.48 : x
  2. Step 2: Convert to fraction form
    4,901.54/7,347.41 = 1,981.48/x
  3. Step 3: Cross multiply
    4,901.54x = 7,347.41 × 1,981.48
  4. Step 4: Simplify right side
    4,901.54x = 14,558,745.97
  5. Step 5: Solve for x
    x = 14,558,745.97/4,901.54
  6. Step 6: Final answer
    x = 2,970.24

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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.