Home / 3,638.20-5,020.50-2,066.32

Finding the Fourth Proportional to 3,638.20, 5,020.50 and 2,066.32

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Solution

The fourth proportional to 3,638.20, 5,020.50 and 2,066.32 is: 2,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.20 : 5,020.50 = 2,066.32 : x
  2. Step 2: Convert to fraction form
    3,638.20/5,020.50 = 2,066.32/x
  3. Step 3: Cross multiply
    3,638.20x = 5,020.50 × 2,066.32
  4. Step 4: Simplify right side
    3,638.20x = 10,373,959.56
  5. Step 5: Solve for x
    x = 10,373,959.56/3,638.20
  6. Step 6: Final answer
    x = 2,851.40

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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.