Home / 2,786.32-3,845.34-1,607.80

Finding the Fourth Proportional to 2,786.32, 3,845.34 and 1,607.80

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Solution

The fourth proportional to 2,786.32, 3,845.34 and 1,607.80 is: 2,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.32 : 3,845.34 = 1,607.80 : x
  2. Step 2: Convert to fraction form
    2,786.32/3,845.34 = 1,607.80/x
  3. Step 3: Cross multiply
    2,786.32x = 3,845.34 × 1,607.80
  4. Step 4: Simplify right side
    2,786.32x = 6,182,537.65
  5. Step 5: Solve for x
    x = 6,182,537.65/2,786.32
  6. Step 6: Final answer
    x = 2,218.89

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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.