Home / 2,079.26-2,871.62-1,640.44

Finding the Fourth Proportional to 2,079.26, 2,871.62 and 1,640.44

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Solution

The fourth proportional to 2,079.26, 2,871.62 and 1,640.44 is: 2,265.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.26 : 2,871.62 = 1,640.44 : x
  2. Step 2: Convert to fraction form
    2,079.26/2,871.62 = 1,640.44/x
  3. Step 3: Cross multiply
    2,079.26x = 2,871.62 × 1,640.44
  4. Step 4: Simplify right side
    2,079.26x = 4,710,720.31
  5. Step 5: Solve for x
    x = 4,710,720.31/2,079.26
  6. Step 6: Final answer
    x = 2,265.58

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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.