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Finding the Fourth Proportional to 4,653.47, 6,978.84 and 1,365.78

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Solution

The fourth proportional to 4,653.47, 6,978.84 and 1,365.78 is: 2,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,653.47 : 6,978.84 = 1,365.78 : x
  2. Step 2: Convert to fraction form
    4,653.47/6,978.84 = 1,365.78/x
  3. Step 3: Cross multiply
    4,653.47x = 6,978.84 × 1,365.78
  4. Step 4: Simplify right side
    4,653.47x = 9,531,560.10
  5. Step 5: Solve for x
    x = 9,531,560.10/4,653.47
  6. Step 6: Final answer
    x = 2,048.27

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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.