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Finding the Fourth Proportional to 2,007.97, 3,012.23 and 621.41

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Solution

The fourth proportional to 2,007.97, 3,012.23 and 621.41 is: 932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.97 : 3,012.23 = 621.41 : x
  2. Step 2: Convert to fraction form
    2,007.97/3,012.23 = 621.41/x
  3. Step 3: Cross multiply
    2,007.97x = 3,012.23 × 621.41
  4. Step 4: Simplify right side
    2,007.97x = 1,871,829.84
  5. Step 5: Solve for x
    x = 1,871,829.84/2,007.97
  6. Step 6: Final answer
    x = 932.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.