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Finding the Fourth Proportional to 2,270.56, 3,405.28 and 626.72

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Solution

The fourth proportional to 2,270.56, 3,405.28 and 626.72 is: 939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.56 : 3,405.28 = 626.72 : x
  2. Step 2: Convert to fraction form
    2,270.56/3,405.28 = 626.72/x
  3. Step 3: Cross multiply
    2,270.56x = 3,405.28 × 626.72
  4. Step 4: Simplify right side
    2,270.56x = 2,134,157.08
  5. Step 5: Solve for x
    x = 2,134,157.08/2,270.56
  6. Step 6: Final answer
    x = 939.93

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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.