Home / 3,880.90-5,356.49-2,554.73

Finding the Fourth Proportional to 3,880.90, 5,356.49 and 2,554.73

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Solution

The fourth proportional to 3,880.90, 5,356.49 and 2,554.73 is: 3,526.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.90 : 5,356.49 = 2,554.73 : x
  2. Step 2: Convert to fraction form
    3,880.90/5,356.49 = 2,554.73/x
  3. Step 3: Cross multiply
    3,880.90x = 5,356.49 × 2,554.73
  4. Step 4: Simplify right side
    3,880.90x = 13,684,385.70
  5. Step 5: Solve for x
    x = 13,684,385.70/3,880.90
  6. Step 6: Final answer
    x = 3,526.09

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1.5x scale

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.