Home / 5,585.20-8,379-2,625.40

Finding the Fourth Proportional to 5,585.20, 8,379 and 2,625.40

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Solution

The fourth proportional to 5,585.20, 8,379 and 2,625.40 is: 3,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.20 : 8,379 = 2,625.40 : x
  2. Step 2: Convert to fraction form
    5,585.20/8,379 = 2,625.40/x
  3. Step 3: Cross multiply
    5,585.20x = 8,379 × 2,625.40
  4. Step 4: Simplify right side
    5,585.20x = 21,998,226.60
  5. Step 5: Solve for x
    x = 21,998,226.60/5,585.20
  6. Step 6: Final answer
    x = 3,938.66

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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.