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Finding the Fourth Proportional to 2,750.07, 3,795.31 and 1,555.31

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Solution

The fourth proportional to 2,750.07, 3,795.31 and 1,555.31 is: 2,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.07 : 3,795.31 = 1,555.31 : x
  2. Step 2: Convert to fraction form
    2,750.07/3,795.31 = 1,555.31/x
  3. Step 3: Cross multiply
    2,750.07x = 3,795.31 × 1,555.31
  4. Step 4: Simplify right side
    2,750.07x = 5,902,866.56
  5. Step 5: Solve for x
    x = 5,902,866.56/2,750.07
  6. Step 6: Final answer
    x = 2,146.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.