Home / 2,489.36-3,436.47-1,606.65

Finding the Fourth Proportional to 2,489.36, 3,436.47 and 1,606.65

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Solution

The fourth proportional to 2,489.36, 3,436.47 and 1,606.65 is: 2,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.36 : 3,436.47 = 1,606.65 : x
  2. Step 2: Convert to fraction form
    2,489.36/3,436.47 = 1,606.65/x
  3. Step 3: Cross multiply
    2,489.36x = 3,436.47 × 1,606.65
  4. Step 4: Simplify right side
    2,489.36x = 5,521,204.53
  5. Step 5: Solve for x
    x = 5,521,204.53/2,489.36
  6. Step 6: Final answer
    x = 2,217.93

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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.