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Finding the Fourth Proportional to 3,427.01, 4,729.16 and 1,914.65

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Solution

The fourth proportional to 3,427.01, 4,729.16 and 1,914.65 is: 2,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.01 : 4,729.16 = 1,914.65 : x
  2. Step 2: Convert to fraction form
    3,427.01/4,729.16 = 1,914.65/x
  3. Step 3: Cross multiply
    3,427.01x = 4,729.16 × 1,914.65
  4. Step 4: Simplify right side
    3,427.01x = 9,054,688.44
  5. Step 5: Solve for x
    x = 9,054,688.44/3,427.01
  6. Step 6: Final answer
    x = 2,642.15

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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.