Home / 9,218.95-13,828.83-2,978.94

Finding the Fourth Proportional to 9,218.95, 13,828.83 and 2,978.94

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Solution

The fourth proportional to 9,218.95, 13,828.83 and 2,978.94 is: 4,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.95 : 13,828.83 = 2,978.94 : x
  2. Step 2: Convert to fraction form
    9,218.95/13,828.83 = 2,978.94/x
  3. Step 3: Cross multiply
    9,218.95x = 13,828.83 × 2,978.94
  4. Step 4: Simplify right side
    9,218.95x = 41,195,295.53
  5. Step 5: Solve for x
    x = 41,195,295.53/9,218.95
  6. Step 6: Final answer
    x = 4,468.55

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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.