Home / 3,953.38-5,455.19-2,184.74

Finding the Fourth Proportional to 3,953.38, 5,455.19 and 2,184.74

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Solution

The fourth proportional to 3,953.38, 5,455.19 and 2,184.74 is: 3,014.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.38 : 5,455.19 = 2,184.74 : x
  2. Step 2: Convert to fraction form
    3,953.38/5,455.19 = 2,184.74/x
  3. Step 3: Cross multiply
    3,953.38x = 5,455.19 × 2,184.74
  4. Step 4: Simplify right side
    3,953.38x = 11,918,160.88
  5. Step 5: Solve for x
    x = 11,918,160.88/3,953.38
  6. Step 6: Final answer
    x = 3,014.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.