Home / 3,953.28-5,455.58-2,184.87

Finding the Fourth Proportional to 3,953.28, 5,455.58 and 2,184.87

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Solution

The fourth proportional to 3,953.28, 5,455.58 and 2,184.87 is: 3,015.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.28 : 5,455.58 = 2,184.87 : x
  2. Step 2: Convert to fraction form
    3,953.28/5,455.58 = 2,184.87/x
  3. Step 3: Cross multiply
    3,953.28x = 5,455.58 × 2,184.87
  4. Step 4: Simplify right side
    3,953.28x = 11,919,722.15
  5. Step 5: Solve for x
    x = 11,919,722.15/3,953.28
  6. Step 6: Final answer
    x = 3,015.15

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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.