Home / 2,269.04-3,380.74-2,120

Finding the Fourth Proportional to 2,269.04, 3,380.74 and 2,120

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Solution

The fourth proportional to 2,269.04, 3,380.74 and 2,120 is: 3,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.04 : 3,380.74 = 2,120 : x
  2. Step 2: Convert to fraction form
    2,269.04/3,380.74 = 2,120/x
  3. Step 3: Cross multiply
    2,269.04x = 3,380.74 × 2,120
  4. Step 4: Simplify right side
    2,269.04x = 7,167,168.80
  5. Step 5: Solve for x
    x = 7,167,168.80/2,269.04
  6. Step 6: Final answer
    x = 3,158.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.