Home / 3,291.96-4,938-1,342.95

Finding the Fourth Proportional to 3,291.96, 4,938 and 1,342.95

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Solution

The fourth proportional to 3,291.96, 4,938 and 1,342.95 is: 2,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.96 : 4,938 = 1,342.95 : x
  2. Step 2: Convert to fraction form
    3,291.96/4,938 = 1,342.95/x
  3. Step 3: Cross multiply
    3,291.96x = 4,938 × 1,342.95
  4. Step 4: Simplify right side
    3,291.96x = 6,631,487.10
  5. Step 5: Solve for x
    x = 6,631,487.10/3,291.96
  6. Step 6: Final answer
    x = 2,014.45

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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.