Home / 3,105.69-4,289.51-2,055.93

Finding the Fourth Proportional to 3,105.69, 4,289.51 and 2,055.93

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Solution

The fourth proportional to 3,105.69, 4,289.51 and 2,055.93 is: 2,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.69 : 4,289.51 = 2,055.93 : x
  2. Step 2: Convert to fraction form
    3,105.69/4,289.51 = 2,055.93/x
  3. Step 3: Cross multiply
    3,105.69x = 4,289.51 × 2,055.93
  4. Step 4: Simplify right side
    3,105.69x = 8,818,932.29
  5. Step 5: Solve for x
    x = 8,818,932.29/3,105.69
  6. Step 6: Final answer
    x = 2,839.60

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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.