Home / 3,953.14-5,455.74-2,274.61

Finding the Fourth Proportional to 3,953.14, 5,455.74 and 2,274.61

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Solution

The fourth proportional to 3,953.14, 5,455.74 and 2,274.61 is: 3,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.14 : 5,455.74 = 2,274.61 : x
  2. Step 2: Convert to fraction form
    3,953.14/5,455.74 = 2,274.61/x
  3. Step 3: Cross multiply
    3,953.14x = 5,455.74 × 2,274.61
  4. Step 4: Simplify right side
    3,953.14x = 12,409,680.76
  5. Step 5: Solve for x
    x = 12,409,680.76/3,953.14
  6. Step 6: Final answer
    x = 3,139.20

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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.