Home / 5,455.44-8,184.78-2,124.72

Finding the Fourth Proportional to 5,455.44, 8,184.78 and 2,124.72

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Solution

The fourth proportional to 5,455.44, 8,184.78 and 2,124.72 is: 3,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.44 : 8,184.78 = 2,124.72 : x
  2. Step 2: Convert to fraction form
    5,455.44/8,184.78 = 2,124.72/x
  3. Step 3: Cross multiply
    5,455.44x = 8,184.78 × 2,124.72
  4. Step 4: Simplify right side
    5,455.44x = 17,390,365.76
  5. Step 5: Solve for x
    x = 17,390,365.76/5,455.44
  6. Step 6: Final answer
    x = 3,187.71

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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.