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Finding the Fourth Proportional to 5,292.07, 7,938.80 and 1,959.86

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Solution

The fourth proportional to 5,292.07, 7,938.80 and 1,959.86 is: 2,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.07 : 7,938.80 = 1,959.86 : x
  2. Step 2: Convert to fraction form
    5,292.07/7,938.80 = 1,959.86/x
  3. Step 3: Cross multiply
    5,292.07x = 7,938.80 × 1,959.86
  4. Step 4: Simplify right side
    5,292.07x = 15,558,936.57
  5. Step 5: Solve for x
    x = 15,558,936.57/5,292.07
  6. Step 6: Final answer
    x = 2,940.05

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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.