Home / 3,638.18-5,021.13-2,066.66

Finding the Fourth Proportional to 3,638.18, 5,021.13 and 2,066.66

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Solution

The fourth proportional to 3,638.18, 5,021.13 and 2,066.66 is: 2,852.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.18 : 5,021.13 = 2,066.66 : x
  2. Step 2: Convert to fraction form
    3,638.18/5,021.13 = 2,066.66/x
  3. Step 3: Cross multiply
    3,638.18x = 5,021.13 × 2,066.66
  4. Step 4: Simplify right side
    3,638.18x = 10,376,968.53
  5. Step 5: Solve for x
    x = 10,376,968.53/3,638.18
  6. Step 6: Final answer
    x = 2,852.24

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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.