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Finding the Fourth Proportional to 2,013.47, 3,020.22 and 626.78

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Solution

The fourth proportional to 2,013.47, 3,020.22 and 626.78 is: 940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.47 : 3,020.22 = 626.78 : x
  2. Step 2: Convert to fraction form
    2,013.47/3,020.22 = 626.78/x
  3. Step 3: Cross multiply
    2,013.47x = 3,020.22 × 626.78
  4. Step 4: Simplify right side
    2,013.47x = 1,893,013.49
  5. Step 5: Solve for x
    x = 1,893,013.49/2,013.47
  6. Step 6: Final answer
    x = 940.17

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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.