Home / 2,069.25-2,855.84-1,439.43

Finding the Fourth Proportional to 2,069.25, 2,855.84 and 1,439.43

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Solution

The fourth proportional to 2,069.25, 2,855.84 and 1,439.43 is: 1,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.25 : 2,855.84 = 1,439.43 : x
  2. Step 2: Convert to fraction form
    2,069.25/2,855.84 = 1,439.43/x
  3. Step 3: Cross multiply
    2,069.25x = 2,855.84 × 1,439.43
  4. Step 4: Simplify right side
    2,069.25x = 4,110,774.57
  5. Step 5: Solve for x
    x = 4,110,774.57/2,069.25
  6. Step 6: Final answer
    x = 1,986.60

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1.5x scale

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.