Home / 3,427.20-4,729.48-1,855.28

Finding the Fourth Proportional to 3,427.20, 4,729.48 and 1,855.28

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Solution

The fourth proportional to 3,427.20, 4,729.48 and 1,855.28 is: 2,560.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.20 : 4,729.48 = 1,855.28 : x
  2. Step 2: Convert to fraction form
    3,427.20/4,729.48 = 1,855.28/x
  3. Step 3: Cross multiply
    3,427.20x = 4,729.48 × 1,855.28
  4. Step 4: Simplify right side
    3,427.20x = 8,774,509.65
  5. Step 5: Solve for x
    x = 8,774,509.65/3,427.20
  6. Step 6: Final answer
    x = 2,560.26

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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.