Home / 4,579.80-6,866.64-2,111.28

Finding the Fourth Proportional to 4,579.80, 6,866.64 and 2,111.28

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Solution

The fourth proportional to 4,579.80, 6,866.64 and 2,111.28 is: 3,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,579.80 : 6,866.64 = 2,111.28 : x
  2. Step 2: Convert to fraction form
    4,579.80/6,866.64 = 2,111.28/x
  3. Step 3: Cross multiply
    4,579.80x = 6,866.64 × 2,111.28
  4. Step 4: Simplify right side
    4,579.80x = 14,497,399.70
  5. Step 5: Solve for x
    x = 14,497,399.70/4,579.80
  6. Step 6: Final answer
    x = 3,165.51

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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.