Home / 4,905.71-7,356.52-1,981.97

Finding the Fourth Proportional to 4,905.71, 7,356.52 and 1,981.97

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Solution

The fourth proportional to 4,905.71, 7,356.52 and 1,981.97 is: 2,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.71 : 7,356.52 = 1,981.97 : x
  2. Step 2: Convert to fraction form
    4,905.71/7,356.52 = 1,981.97/x
  3. Step 3: Cross multiply
    4,905.71x = 7,356.52 × 1,981.97
  4. Step 4: Simplify right side
    4,905.71x = 14,580,395.23
  5. Step 5: Solve for x
    x = 14,580,395.23/4,905.71
  6. Step 6: Final answer
    x = 2,972.12

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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.