Home / 4,685.70-7,028.55-1,222.95

Finding the Fourth Proportional to 4,685.70, 7,028.55 and 1,222.95

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Solution

The fourth proportional to 4,685.70, 7,028.55 and 1,222.95 is: 1,834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.70 : 7,028.55 = 1,222.95 : x
  2. Step 2: Convert to fraction form
    4,685.70/7,028.55 = 1,222.95/x
  3. Step 3: Cross multiply
    4,685.70x = 7,028.55 × 1,222.95
  4. Step 4: Simplify right side
    4,685.70x = 8,595,565.22
  5. Step 5: Solve for x
    x = 8,595,565.22/4,685.70
  6. Step 6: Final answer
    x = 1,834.43

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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.