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Finding the Fourth Proportional to 5,930.78, 8,898.93 and 2,643.53

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Solution

The fourth proportional to 5,930.78, 8,898.93 and 2,643.53 is: 3,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,930.78 : 8,898.93 = 2,643.53 : x
  2. Step 2: Convert to fraction form
    5,930.78/8,898.93 = 2,643.53/x
  3. Step 3: Cross multiply
    5,930.78x = 8,898.93 × 2,643.53
  4. Step 4: Simplify right side
    5,930.78x = 23,524,543.93
  5. Step 5: Solve for x
    x = 23,524,543.93/5,930.78
  6. Step 6: Final answer
    x = 3,966.52

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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.