Home / 1,646.70-2,469.44-1,388.52

Finding the Fourth Proportional to 1,646.70, 2,469.44 and 1,388.52

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Solution

The fourth proportional to 1,646.70, 2,469.44 and 1,388.52 is: 2,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.70 : 2,469.44 = 1,388.52 : x
  2. Step 2: Convert to fraction form
    1,646.70/2,469.44 = 1,388.52/x
  3. Step 3: Cross multiply
    1,646.70x = 2,469.44 × 1,388.52
  4. Step 4: Simplify right side
    1,646.70x = 3,428,866.83
  5. Step 5: Solve for x
    x = 3,428,866.83/1,646.70
  6. Step 6: Final answer
    x = 2,082.27

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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.