Home / 5,385.18-8,069.22-4,155.60

Finding the Fourth Proportional to 5,385.18, 8,069.22 and 4,155.60

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Solution

The fourth proportional to 5,385.18, 8,069.22 and 4,155.60 is: 6,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.18 : 8,069.22 = 4,155.60 : x
  2. Step 2: Convert to fraction form
    5,385.18/8,069.22 = 4,155.60/x
  3. Step 3: Cross multiply
    5,385.18x = 8,069.22 × 4,155.60
  4. Step 4: Simplify right side
    5,385.18x = 33,532,450.63
  5. Step 5: Solve for x
    x = 33,532,450.63/5,385.18
  6. Step 6: Final answer
    x = 6,226.80

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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.