Home / 3,880.65-5,355.14-2,202.02

Finding the Fourth Proportional to 3,880.65, 5,355.14 and 2,202.02

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Solution

The fourth proportional to 3,880.65, 5,355.14 and 2,202.02 is: 3,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.65 : 5,355.14 = 2,202.02 : x
  2. Step 2: Convert to fraction form
    3,880.65/5,355.14 = 2,202.02/x
  3. Step 3: Cross multiply
    3,880.65x = 5,355.14 × 2,202.02
  4. Step 4: Simplify right side
    3,880.65x = 11,792,148.22
  5. Step 5: Solve for x
    x = 11,792,148.22/3,880.65
  6. Step 6: Final answer
    x = 3,038.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.