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Finding the Fourth Proportional to 7,954.84, 11,927.35 and 2,689.35

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Solution

The fourth proportional to 7,954.84, 11,927.35 and 2,689.35 is: 4,032.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.84 : 11,927.35 = 2,689.35 : x
  2. Step 2: Convert to fraction form
    7,954.84/11,927.35 = 2,689.35/x
  3. Step 3: Cross multiply
    7,954.84x = 11,927.35 × 2,689.35
  4. Step 4: Simplify right side
    7,954.84x = 32,076,818.72
  5. Step 5: Solve for x
    x = 32,076,818.72/7,954.84
  6. Step 6: Final answer
    x = 4,032.37

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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.