Home / 2,657.23-3,986.36-1,098.08

Finding the Fourth Proportional to 2,657.23, 3,986.36 and 1,098.08

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Solution

The fourth proportional to 2,657.23, 3,986.36 and 1,098.08 is: 1,647.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.23 : 3,986.36 = 1,098.08 : x
  2. Step 2: Convert to fraction form
    2,657.23/3,986.36 = 1,098.08/x
  3. Step 3: Cross multiply
    2,657.23x = 3,986.36 × 1,098.08
  4. Step 4: Simplify right side
    2,657.23x = 4,377,342.19
  5. Step 5: Solve for x
    x = 4,377,342.19/2,657.23
  6. Step 6: Final answer
    x = 1,647.33

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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.