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Finding the Fourth Proportional to 2,030.14, 3,045 and 920.62

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Solution

The fourth proportional to 2,030.14, 3,045 and 920.62 is: 1,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.14 : 3,045 = 920.62 : x
  2. Step 2: Convert to fraction form
    2,030.14/3,045 = 920.62/x
  3. Step 3: Cross multiply
    2,030.14x = 3,045 × 920.62
  4. Step 4: Simplify right side
    2,030.14x = 2,803,287.90
  5. Step 5: Solve for x
    x = 2,803,287.90/2,030.14
  6. Step 6: Final answer
    x = 1,380.83

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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.