Home / 2,436.75-3,362.76-1,388.88

Finding the Fourth Proportional to 2,436.75, 3,362.76 and 1,388.88

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Solution

The fourth proportional to 2,436.75, 3,362.76 and 1,388.88 is: 1,916.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,436.75 : 3,362.76 = 1,388.88 : x
  2. Step 2: Convert to fraction form
    2,436.75/3,362.76 = 1,388.88/x
  3. Step 3: Cross multiply
    2,436.75x = 3,362.76 × 1,388.88
  4. Step 4: Simplify right side
    2,436.75x = 4,670,470.11
  5. Step 5: Solve for x
    x = 4,670,470.11/2,436.75
  6. Step 6: Final answer
    x = 1,916.68

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1.5x scale

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.