Home / 2,239.18-3,089.94-1,355.48

Finding the Fourth Proportional to 2,239.18, 3,089.94 and 1,355.48

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Solution

The fourth proportional to 2,239.18, 3,089.94 and 1,355.48 is: 1,870.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.18 : 3,089.94 = 1,355.48 : x
  2. Step 2: Convert to fraction form
    2,239.18/3,089.94 = 1,355.48/x
  3. Step 3: Cross multiply
    2,239.18x = 3,089.94 × 1,355.48
  4. Step 4: Simplify right side
    2,239.18x = 4,188,351.87
  5. Step 5: Solve for x
    x = 4,188,351.87/2,239.18
  6. Step 6: Final answer
    x = 1,870.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.