Home / 2,808.87-4,204.26-1,490.78

Finding the Fourth Proportional to 2,808.87, 4,204.26 and 1,490.78

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Solution

The fourth proportional to 2,808.87, 4,204.26 and 1,490.78 is: 2,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.87 : 4,204.26 = 1,490.78 : x
  2. Step 2: Convert to fraction form
    2,808.87/4,204.26 = 1,490.78/x
  3. Step 3: Cross multiply
    2,808.87x = 4,204.26 × 1,490.78
  4. Step 4: Simplify right side
    2,808.87x = 6,267,605.70
  5. Step 5: Solve for x
    x = 6,267,605.70/2,808.87
  6. Step 6: Final answer
    x = 2,231.36

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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.