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Finding the Fourth Proportional to 4,610.07, 6,917.18 and 1,978.26

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Solution

The fourth proportional to 4,610.07, 6,917.18 and 1,978.26 is: 2,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,610.07 : 6,917.18 = 1,978.26 : x
  2. Step 2: Convert to fraction form
    4,610.07/6,917.18 = 1,978.26/x
  3. Step 3: Cross multiply
    4,610.07x = 6,917.18 × 1,978.26
  4. Step 4: Simplify right side
    4,610.07x = 13,683,970.62
  5. Step 5: Solve for x
    x = 13,683,970.62/4,610.07
  6. Step 6: Final answer
    x = 2,968.28

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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.