Home / 2,015.71-3,023.57-1,284.55

Finding the Fourth Proportional to 2,015.71, 3,023.57 and 1,284.55

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Solution

The fourth proportional to 2,015.71, 3,023.57 and 1,284.55 is: 1,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.71 : 3,023.57 = 1,284.55 : x
  2. Step 2: Convert to fraction form
    2,015.71/3,023.57 = 1,284.55/x
  3. Step 3: Cross multiply
    2,015.71x = 3,023.57 × 1,284.55
  4. Step 4: Simplify right side
    2,015.71x = 3,883,926.84
  5. Step 5: Solve for x
    x = 3,883,926.84/2,015.71
  6. Step 6: Final answer
    x = 1,926.83

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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.