Home / 7,824.65-11,737.37-1,981.31

Finding the Fourth Proportional to 7,824.65, 11,737.37 and 1,981.31

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Solution

The fourth proportional to 7,824.65, 11,737.37 and 1,981.31 is: 2,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.65 : 11,737.37 = 1,981.31 : x
  2. Step 2: Convert to fraction form
    7,824.65/11,737.37 = 1,981.31/x
  3. Step 3: Cross multiply
    7,824.65x = 11,737.37 × 1,981.31
  4. Step 4: Simplify right side
    7,824.65x = 23,255,314.82
  5. Step 5: Solve for x
    x = 23,255,314.82/7,824.65
  6. Step 6: Final answer
    x = 2,972.06

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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.