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Finding the Fourth Proportional to 2,270.79, 3,405.77 and 626.93

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Solution

The fourth proportional to 2,270.79, 3,405.77 and 626.93 is: 940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.79 : 3,405.77 = 626.93 : x
  2. Step 2: Convert to fraction form
    2,270.79/3,405.77 = 626.93/x
  3. Step 3: Cross multiply
    2,270.79x = 3,405.77 × 626.93
  4. Step 4: Simplify right side
    2,270.79x = 2,135,189.47
  5. Step 5: Solve for x
    x = 2,135,189.47/2,270.79
  6. Step 6: Final answer
    x = 940.28

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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.