Home / 2,698.24-4,043.52-1,331.20

Finding the Fourth Proportional to 2,698.24, 4,043.52 and 1,331.20

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Solution

The fourth proportional to 2,698.24, 4,043.52 and 1,331.20 is: 1,994.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.24 : 4,043.52 = 1,331.20 : x
  2. Step 2: Convert to fraction form
    2,698.24/4,043.52 = 1,331.20/x
  3. Step 3: Cross multiply
    2,698.24x = 4,043.52 × 1,331.20
  4. Step 4: Simplify right side
    2,698.24x = 5,382,733.82
  5. Step 5: Solve for x
    x = 5,382,733.82/2,698.24
  6. Step 6: Final answer
    x = 1,994.91

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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.