Home / 1,644.72-2,269.44-1,055.14

Finding the Fourth Proportional to 1,644.72, 2,269.44 and 1,055.14

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Solution

The fourth proportional to 1,644.72, 2,269.44 and 1,055.14 is: 1,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.72 : 2,269.44 = 1,055.14 : x
  2. Step 2: Convert to fraction form
    1,644.72/2,269.44 = 1,055.14/x
  3. Step 3: Cross multiply
    1,644.72x = 2,269.44 × 1,055.14
  4. Step 4: Simplify right side
    1,644.72x = 2,394,576.92
  5. Step 5: Solve for x
    x = 2,394,576.92/1,644.72
  6. Step 6: Final answer
    x = 1,455.92

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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.