Home / 2,739.35-3,780.68-1,620.95

Finding the Fourth Proportional to 2,739.35, 3,780.68 and 1,620.95

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Solution

The fourth proportional to 2,739.35, 3,780.68 and 1,620.95 is: 2,237.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.35 : 3,780.68 = 1,620.95 : x
  2. Step 2: Convert to fraction form
    2,739.35/3,780.68 = 1,620.95/x
  3. Step 3: Cross multiply
    2,739.35x = 3,780.68 × 1,620.95
  4. Step 4: Simplify right side
    2,739.35x = 6,128,266.24
  5. Step 5: Solve for x
    x = 6,128,266.24/2,739.35
  6. Step 6: Final answer
    x = 2,237.12

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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.