Home / 1,660.06-2,291.09-1,072.30

Finding the Fourth Proportional to 1,660.06, 2,291.09 and 1,072.30

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Solution

The fourth proportional to 1,660.06, 2,291.09 and 1,072.30 is: 1,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.06 : 2,291.09 = 1,072.30 : x
  2. Step 2: Convert to fraction form
    1,660.06/2,291.09 = 1,072.30/x
  3. Step 3: Cross multiply
    1,660.06x = 2,291.09 × 1,072.30
  4. Step 4: Simplify right side
    1,660.06x = 2,456,735.81
  5. Step 5: Solve for x
    x = 2,456,735.81/1,660.06
  6. Step 6: Final answer
    x = 1,479.91

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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.