Home / 3,558.20-5,337.30-2,391.80

Finding the Fourth Proportional to 3,558.20, 5,337.30 and 2,391.80

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Solution

The fourth proportional to 3,558.20, 5,337.30 and 2,391.80 is: 3,587.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.20 : 5,337.30 = 2,391.80 : x
  2. Step 2: Convert to fraction form
    3,558.20/5,337.30 = 2,391.80/x
  3. Step 3: Cross multiply
    3,558.20x = 5,337.30 × 2,391.80
  4. Step 4: Simplify right side
    3,558.20x = 12,765,754.14
  5. Step 5: Solve for x
    x = 12,765,754.14/3,558.20
  6. Step 6: Final answer
    x = 3,587.70

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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.