Home / 5,621.20-8,434.23-3,021.10

Finding the Fourth Proportional to 5,621.20, 8,434.23 and 3,021.10

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Solution

The fourth proportional to 5,621.20, 8,434.23 and 3,021.10 is: 4,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.20 : 8,434.23 = 3,021.10 : x
  2. Step 2: Convert to fraction form
    5,621.20/8,434.23 = 3,021.10/x
  3. Step 3: Cross multiply
    5,621.20x = 8,434.23 × 3,021.10
  4. Step 4: Simplify right side
    5,621.20x = 25,480,619.84
  5. Step 5: Solve for x
    x = 25,480,619.84/5,621.20
  6. Step 6: Final answer
    x = 4,532.95

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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.