Home / 2,087.46-3,131.66-700.87

Finding the Fourth Proportional to 2,087.46, 3,131.66 and 700.87

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Solution

The fourth proportional to 2,087.46, 3,131.66 and 700.87 is: 1,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.46 : 3,131.66 = 700.87 : x
  2. Step 2: Convert to fraction form
    2,087.46/3,131.66 = 700.87/x
  3. Step 3: Cross multiply
    2,087.46x = 3,131.66 × 700.87
  4. Step 4: Simplify right side
    2,087.46x = 2,194,886.54
  5. Step 5: Solve for x
    x = 2,194,886.54/2,087.46
  6. Step 6: Final answer
    x = 1,051.46

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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.