Home / 2,826.88-4,231.68-1,888.90

Finding the Fourth Proportional to 2,826.88, 4,231.68 and 1,888.90

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Solution

The fourth proportional to 2,826.88, 4,231.68 and 1,888.90 is: 2,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.88 : 4,231.68 = 1,888.90 : x
  2. Step 2: Convert to fraction form
    2,826.88/4,231.68 = 1,888.90/x
  3. Step 3: Cross multiply
    2,826.88x = 4,231.68 × 1,888.90
  4. Step 4: Simplify right side
    2,826.88x = 7,993,220.35
  5. Step 5: Solve for x
    x = 7,993,220.35/2,826.88
  6. Step 6: Final answer
    x = 2,827.58

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1.5x scale

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.