Home / 2,087.45-3,126.66-1,964.77

Finding the Fourth Proportional to 2,087.45, 3,126.66 and 1,964.77

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Solution

The fourth proportional to 2,087.45, 3,126.66 and 1,964.77 is: 2,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.45 : 3,126.66 = 1,964.77 : x
  2. Step 2: Convert to fraction form
    2,087.45/3,126.66 = 1,964.77/x
  3. Step 3: Cross multiply
    2,087.45x = 3,126.66 × 1,964.77
  4. Step 4: Simplify right side
    2,087.45x = 6,143,152.13
  5. Step 5: Solve for x
    x = 6,143,152.13/2,087.45
  6. Step 6: Final answer
    x = 2,942.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.