Home / 4,685.19-7,028.79-1,398.54

Finding the Fourth Proportional to 4,685.19, 7,028.79 and 1,398.54

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Solution

The fourth proportional to 4,685.19, 7,028.79 and 1,398.54 is: 2,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.19 : 7,028.79 = 1,398.54 : x
  2. Step 2: Convert to fraction form
    4,685.19/7,028.79 = 1,398.54/x
  3. Step 3: Cross multiply
    4,685.19x = 7,028.79 × 1,398.54
  4. Step 4: Simplify right side
    4,685.19x = 9,830,043.97
  5. Step 5: Solve for x
    x = 9,830,043.97/4,685.19
  6. Step 6: Final answer
    x = 2,098.11

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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.