Home / 3,638.40-5,019.92-2,066.48

Finding the Fourth Proportional to 3,638.40, 5,019.92 and 2,066.48

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Solution

The fourth proportional to 3,638.40, 5,019.92 and 2,066.48 is: 2,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.40 : 5,019.92 = 2,066.48 : x
  2. Step 2: Convert to fraction form
    3,638.40/5,019.92 = 2,066.48/x
  3. Step 3: Cross multiply
    3,638.40x = 5,019.92 × 2,066.48
  4. Step 4: Simplify right side
    3,638.40x = 10,373,564.28
  5. Step 5: Solve for x
    x = 10,373,564.28/3,638.40
  6. Step 6: Final answer
    x = 2,851.13

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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.