Home / 3,553.91-5,323.56-2,856.80

Finding the Fourth Proportional to 3,553.91, 5,323.56 and 2,856.80

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Solution

The fourth proportional to 3,553.91, 5,323.56 and 2,856.80 is: 4,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.91 : 5,323.56 = 2,856.80 : x
  2. Step 2: Convert to fraction form
    3,553.91/5,323.56 = 2,856.80/x
  3. Step 3: Cross multiply
    3,553.91x = 5,323.56 × 2,856.80
  4. Step 4: Simplify right side
    3,553.91x = 15,208,319.59
  5. Step 5: Solve for x
    x = 15,208,319.59/3,553.91
  6. Step 6: Final answer
    x = 4,279.33

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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.