Home / 5,580.18-8,370.51-2,115.54

Finding the Fourth Proportional to 5,580.18, 8,370.51 and 2,115.54

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Solution

The fourth proportional to 5,580.18, 8,370.51 and 2,115.54 is: 3,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.18 : 8,370.51 = 2,115.54 : x
  2. Step 2: Convert to fraction form
    5,580.18/8,370.51 = 2,115.54/x
  3. Step 3: Cross multiply
    5,580.18x = 8,370.51 × 2,115.54
  4. Step 4: Simplify right side
    5,580.18x = 17,708,148.73
  5. Step 5: Solve for x
    x = 17,708,148.73/5,580.18
  6. Step 6: Final answer
    x = 3,173.40

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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.