Home / 3,105.36-4,632.72-2,555.87

Finding the Fourth Proportional to 3,105.36, 4,632.72 and 2,555.87

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Solution

The fourth proportional to 3,105.36, 4,632.72 and 2,555.87 is: 3,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.36 : 4,632.72 = 2,555.87 : x
  2. Step 2: Convert to fraction form
    3,105.36/4,632.72 = 2,555.87/x
  3. Step 3: Cross multiply
    3,105.36x = 4,632.72 × 2,555.87
  4. Step 4: Simplify right side
    3,105.36x = 11,840,597.32
  5. Step 5: Solve for x
    x = 11,840,597.32/3,105.36
  6. Step 6: Final answer
    x = 3,812.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.