Home / 2,551.86-3,825.06-1,318.95

Finding the Fourth Proportional to 2,551.86, 3,825.06 and 1,318.95

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Solution

The fourth proportional to 2,551.86, 3,825.06 and 1,318.95 is: 1,977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.86 : 3,825.06 = 1,318.95 : x
  2. Step 2: Convert to fraction form
    2,551.86/3,825.06 = 1,318.95/x
  3. Step 3: Cross multiply
    2,551.86x = 3,825.06 × 1,318.95
  4. Step 4: Simplify right side
    2,551.86x = 5,045,062.89
  5. Step 5: Solve for x
    x = 5,045,062.89/2,551.86
  6. Step 6: Final answer
    x = 1,977.01

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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.