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Finding the Fourth Proportional to 2,270.38, 3,405.47 and 626.88

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Solution

The fourth proportional to 2,270.38, 3,405.47 and 626.88 is: 940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.38 : 3,405.47 = 626.88 : x
  2. Step 2: Convert to fraction form
    2,270.38/3,405.47 = 626.88/x
  3. Step 3: Cross multiply
    2,270.38x = 3,405.47 × 626.88
  4. Step 4: Simplify right side
    2,270.38x = 2,134,821.03
  5. Step 5: Solve for x
    x = 2,134,821.03/2,270.38
  6. Step 6: Final answer
    x = 940.29

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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.