Home / 2,490.42-3,437.19-1,899.84

Finding the Fourth Proportional to 2,490.42, 3,437.19 and 1,899.84

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Solution

The fourth proportional to 2,490.42, 3,437.19 and 1,899.84 is: 2,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.42 : 3,437.19 = 1,899.84 : x
  2. Step 2: Convert to fraction form
    2,490.42/3,437.19 = 1,899.84/x
  3. Step 3: Cross multiply
    2,490.42x = 3,437.19 × 1,899.84
  4. Step 4: Simplify right side
    2,490.42x = 6,530,111.05
  5. Step 5: Solve for x
    x = 6,530,111.05/2,490.42
  6. Step 6: Final answer
    x = 2,622.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.