Home / 5,102.20-7,664.10-4,918.60

Finding the Fourth Proportional to 5,102.20, 7,664.10 and 4,918.60

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Solution

The fourth proportional to 5,102.20, 7,664.10 and 4,918.60 is: 7,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.20 : 7,664.10 = 4,918.60 : x
  2. Step 2: Convert to fraction form
    5,102.20/7,664.10 = 4,918.60/x
  3. Step 3: Cross multiply
    5,102.20x = 7,664.10 × 4,918.60
  4. Step 4: Simplify right side
    5,102.20x = 37,696,642.26
  5. Step 5: Solve for x
    x = 37,696,642.26/5,102.20
  6. Step 6: Final answer
    x = 7,388.31

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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.