Home / 7,977.86-11,963.75-2,429.49

Finding the Fourth Proportional to 7,977.86, 11,963.75 and 2,429.49

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Solution

The fourth proportional to 7,977.86, 11,963.75 and 2,429.49 is: 3,643.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.86 : 11,963.75 = 2,429.49 : x
  2. Step 2: Convert to fraction form
    7,977.86/11,963.75 = 2,429.49/x
  3. Step 3: Cross multiply
    7,977.86x = 11,963.75 × 2,429.49
  4. Step 4: Simplify right side
    7,977.86x = 29,065,798.84
  5. Step 5: Solve for x
    x = 29,065,798.84/7,977.86
  6. Step 6: Final answer
    x = 3,643.31

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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.