Home / 5,590.62-8,378.64-2,628.05

Finding the Fourth Proportional to 5,590.62, 8,378.64 and 2,628.05

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Solution

The fourth proportional to 5,590.62, 8,378.64 and 2,628.05 is: 3,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.62 : 8,378.64 = 2,628.05 : x
  2. Step 2: Convert to fraction form
    5,590.62/8,378.64 = 2,628.05/x
  3. Step 3: Cross multiply
    5,590.62x = 8,378.64 × 2,628.05
  4. Step 4: Simplify right side
    5,590.62x = 22,019,442.96
  5. Step 5: Solve for x
    x = 22,019,442.96/5,590.62
  6. Step 6: Final answer
    x = 3,938.64

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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.