Home / 2,789.13-4,183.74-841.32

Finding the Fourth Proportional to 2,789.13, 4,183.74 and 841.32

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Solution

The fourth proportional to 2,789.13, 4,183.74 and 841.32 is: 1,261.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.13 : 4,183.74 = 841.32 : x
  2. Step 2: Convert to fraction form
    2,789.13/4,183.74 = 841.32/x
  3. Step 3: Cross multiply
    2,789.13x = 4,183.74 × 841.32
  4. Step 4: Simplify right side
    2,789.13x = 3,519,864.14
  5. Step 5: Solve for x
    x = 3,519,864.14/2,789.13
  6. Step 6: Final answer
    x = 1,261.99

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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.