Home / 3,953.09-5,455.25-2,184.69

Finding the Fourth Proportional to 3,953.09, 5,455.25 and 2,184.69

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Solution

The fourth proportional to 3,953.09, 5,455.25 and 2,184.69 is: 3,014.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.09 : 5,455.25 = 2,184.69 : x
  2. Step 2: Convert to fraction form
    3,953.09/5,455.25 = 2,184.69/x
  3. Step 3: Cross multiply
    3,953.09x = 5,455.25 × 2,184.69
  4. Step 4: Simplify right side
    3,953.09x = 11,918,019.20
  5. Step 5: Solve for x
    x = 11,918,019.20/3,953.09
  6. Step 6: Final answer
    x = 3,014.87

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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.