Home / 3,638.50-5,020.95-2,066.56

Finding the Fourth Proportional to 3,638.50, 5,020.95 and 2,066.56

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Solution

The fourth proportional to 3,638.50, 5,020.95 and 2,066.56 is: 2,851.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.50 : 5,020.95 = 2,066.56 : x
  2. Step 2: Convert to fraction form
    3,638.50/5,020.95 = 2,066.56/x
  3. Step 3: Cross multiply
    3,638.50x = 5,020.95 × 2,066.56
  4. Step 4: Simplify right side
    3,638.50x = 10,376,089.63
  5. Step 5: Solve for x
    x = 10,376,089.63/3,638.50
  6. Step 6: Final answer
    x = 2,851.75

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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.