Home / 4,020.78-5,549.04-2,228.43

Finding the Fourth Proportional to 4,020.78, 5,549.04 and 2,228.43

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Solution

The fourth proportional to 4,020.78, 5,549.04 and 2,228.43 is: 3,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,020.78 : 5,549.04 = 2,228.43 : x
  2. Step 2: Convert to fraction form
    4,020.78/5,549.04 = 2,228.43/x
  3. Step 3: Cross multiply
    4,020.78x = 5,549.04 × 2,228.43
  4. Step 4: Simplify right side
    4,020.78x = 12,365,647.21
  5. Step 5: Solve for x
    x = 12,365,647.21/4,020.78
  6. Step 6: Final answer
    x = 3,075.43

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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.