Home / 2,801.73-4,200.30-1,320.23

Finding the Fourth Proportional to 2,801.73, 4,200.30 and 1,320.23

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Solution

The fourth proportional to 2,801.73, 4,200.30 and 1,320.23 is: 1,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.73 : 4,200.30 = 1,320.23 : x
  2. Step 2: Convert to fraction form
    2,801.73/4,200.30 = 1,320.23/x
  3. Step 3: Cross multiply
    2,801.73x = 4,200.30 × 1,320.23
  4. Step 4: Simplify right side
    2,801.73x = 5,545,372.57
  5. Step 5: Solve for x
    x = 5,545,372.57/2,801.73
  6. Step 6: Final answer
    x = 1,979.27

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1.5x scale

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.