Home / 3,078.77-4,250.07-2,087.06

Finding the Fourth Proportional to 3,078.77, 4,250.07 and 2,087.06

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Solution

The fourth proportional to 3,078.77, 4,250.07 and 2,087.06 is: 2,881.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.77 : 4,250.07 = 2,087.06 : x
  2. Step 2: Convert to fraction form
    3,078.77/4,250.07 = 2,087.06/x
  3. Step 3: Cross multiply
    3,078.77x = 4,250.07 × 2,087.06
  4. Step 4: Simplify right side
    3,078.77x = 8,870,151.09
  5. Step 5: Solve for x
    x = 8,870,151.09/3,078.77
  6. Step 6: Final answer
    x = 2,881.07

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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.