Home / 1,621.35-2,235.87-1,486.44

Finding the Fourth Proportional to 1,621.35, 2,235.87 and 1,486.44

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Solution

The fourth proportional to 1,621.35, 2,235.87 and 1,486.44 is: 2,049.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.35 : 2,235.87 = 1,486.44 : x
  2. Step 2: Convert to fraction form
    1,621.35/2,235.87 = 1,486.44/x
  3. Step 3: Cross multiply
    1,621.35x = 2,235.87 × 1,486.44
  4. Step 4: Simplify right side
    1,621.35x = 3,323,486.60
  5. Step 5: Solve for x
    x = 3,323,486.60/1,621.35
  6. Step 6: Final answer
    x = 2,049.83

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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.