Home / 1,890.25-2,828.25-1,698.41

Finding the Fourth Proportional to 1,890.25, 2,828.25 and 1,698.41

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Solution

The fourth proportional to 1,890.25, 2,828.25 and 1,698.41 is: 2,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.25 : 2,828.25 = 1,698.41 : x
  2. Step 2: Convert to fraction form
    1,890.25/2,828.25 = 1,698.41/x
  3. Step 3: Cross multiply
    1,890.25x = 2,828.25 × 1,698.41
  4. Step 4: Simplify right side
    1,890.25x = 4,803,528.08
  5. Step 5: Solve for x
    x = 4,803,528.08/1,890.25
  6. Step 6: Final answer
    x = 2,541.21

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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.