Home / 5,620.10-8,423.58-4,228.98

Finding the Fourth Proportional to 5,620.10, 8,423.58 and 4,228.98

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Solution

The fourth proportional to 5,620.10, 8,423.58 and 4,228.98 is: 6,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.10 : 8,423.58 = 4,228.98 : x
  2. Step 2: Convert to fraction form
    5,620.10/8,423.58 = 4,228.98/x
  3. Step 3: Cross multiply
    5,620.10x = 8,423.58 × 4,228.98
  4. Step 4: Simplify right side
    5,620.10x = 35,623,151.35
  5. Step 5: Solve for x
    x = 35,623,151.35/5,620.10
  6. Step 6: Final answer
    x = 6,338.53

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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.