Home / 3,572.40-5,336.81-2,842.80

Finding the Fourth Proportional to 3,572.40, 5,336.81 and 2,842.80

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Solution

The fourth proportional to 3,572.40, 5,336.81 and 2,842.80 is: 4,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.40 : 5,336.81 = 2,842.80 : x
  2. Step 2: Convert to fraction form
    3,572.40/5,336.81 = 2,842.80/x
  3. Step 3: Cross multiply
    3,572.40x = 5,336.81 × 2,842.80
  4. Step 4: Simplify right side
    3,572.40x = 15,171,467.90
  5. Step 5: Solve for x
    x = 15,171,467.90/3,572.40
  6. Step 6: Final answer
    x = 4,246.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.