Home / 3,020.30-4,530.86-2,838.05

Finding the Fourth Proportional to 3,020.30, 4,530.86 and 2,838.05

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Solution

The fourth proportional to 3,020.30, 4,530.86 and 2,838.05 is: 4,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.30 : 4,530.86 = 2,838.05 : x
  2. Step 2: Convert to fraction form
    3,020.30/4,530.86 = 2,838.05/x
  3. Step 3: Cross multiply
    3,020.30x = 4,530.86 × 2,838.05
  4. Step 4: Simplify right side
    3,020.30x = 12,858,770.38
  5. Step 5: Solve for x
    x = 12,858,770.38/3,020.30
  6. Step 6: Final answer
    x = 4,257.46

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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.