Home / 1,917.09-2,644.20-1,760.22

Finding the Fourth Proportional to 1,917.09, 2,644.20 and 1,760.22

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Solution

The fourth proportional to 1,917.09, 2,644.20 and 1,760.22 is: 2,427.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.09 : 2,644.20 = 1,760.22 : x
  2. Step 2: Convert to fraction form
    1,917.09/2,644.20 = 1,760.22/x
  3. Step 3: Cross multiply
    1,917.09x = 2,644.20 × 1,760.22
  4. Step 4: Simplify right side
    1,917.09x = 4,654,373.72
  5. Step 5: Solve for x
    x = 4,654,373.72/1,917.09
  6. Step 6: Final answer
    x = 2,427.83

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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.