Home / 2,808.45-4,212.78-1,053.28

Finding the Fourth Proportional to 2,808.45, 4,212.78 and 1,053.28

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Solution

The fourth proportional to 2,808.45, 4,212.78 and 1,053.28 is: 1,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.45 : 4,212.78 = 1,053.28 : x
  2. Step 2: Convert to fraction form
    2,808.45/4,212.78 = 1,053.28/x
  3. Step 3: Cross multiply
    2,808.45x = 4,212.78 × 1,053.28
  4. Step 4: Simplify right side
    2,808.45x = 4,437,226.39
  5. Step 5: Solve for x
    x = 4,437,226.39/2,808.45
  6. Step 6: Final answer
    x = 1,579.95

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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.