Home / 2,436.13-3,362.46-1,388.80

Finding the Fourth Proportional to 2,436.13, 3,362.46 and 1,388.80

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Solution

The fourth proportional to 2,436.13, 3,362.46 and 1,388.80 is: 1,916.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.13 : 3,362.46 = 1,388.80 : x
  2. Step 2: Convert to fraction form
    2,436.13/3,362.46 = 1,388.80/x
  3. Step 3: Cross multiply
    2,436.13x = 3,362.46 × 1,388.80
  4. Step 4: Simplify right side
    2,436.13x = 4,669,784.45
  5. Step 5: Solve for x
    x = 4,669,784.45/2,436.13
  6. Step 6: Final answer
    x = 1,916.89

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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.