Home / 2,388.40-3,578.37-2,038.18

Finding the Fourth Proportional to 2,388.40, 3,578.37 and 2,038.18

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Solution

The fourth proportional to 2,388.40, 3,578.37 and 2,038.18 is: 3,053.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.40 : 3,578.37 = 2,038.18 : x
  2. Step 2: Convert to fraction form
    2,388.40/3,578.37 = 2,038.18/x
  3. Step 3: Cross multiply
    2,388.40x = 3,578.37 × 2,038.18
  4. Step 4: Simplify right side
    2,388.40x = 7,293,351.98
  5. Step 5: Solve for x
    x = 7,293,351.98/2,388.40
  6. Step 6: Final answer
    x = 3,053.66

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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.