Home / 4,021.65-5,549.91-2,428.38

Finding the Fourth Proportional to 4,021.65, 5,549.91 and 2,428.38

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Solution

The fourth proportional to 4,021.65, 5,549.91 and 2,428.38 is: 3,351.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.65 : 5,549.91 = 2,428.38 : x
  2. Step 2: Convert to fraction form
    4,021.65/5,549.91 = 2,428.38/x
  3. Step 3: Cross multiply
    4,021.65x = 5,549.91 × 2,428.38
  4. Step 4: Simplify right side
    4,021.65x = 13,477,290.45
  5. Step 5: Solve for x
    x = 13,477,290.45/4,021.65
  6. Step 6: Final answer
    x = 3,351.18

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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.