Home / 3,291.58-4,939.32-1,442.98

Finding the Fourth Proportional to 3,291.58, 4,939.32 and 1,442.98

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Solution

The fourth proportional to 3,291.58, 4,939.32 and 1,442.98 is: 2,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.58 : 4,939.32 = 1,442.98 : x
  2. Step 2: Convert to fraction form
    3,291.58/4,939.32 = 1,442.98/x
  3. Step 3: Cross multiply
    3,291.58x = 4,939.32 × 1,442.98
  4. Step 4: Simplify right side
    3,291.58x = 7,127,339.97
  5. Step 5: Solve for x
    x = 7,127,339.97/3,291.58
  6. Step 6: Final answer
    x = 2,165.32

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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.