Home / 2,788.86-4,183.98-841.06

Finding the Fourth Proportional to 2,788.86, 4,183.98 and 841.06

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Solution

The fourth proportional to 2,788.86, 4,183.98 and 841.06 is: 1,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.86 : 4,183.98 = 841.06 : x
  2. Step 2: Convert to fraction form
    2,788.86/4,183.98 = 841.06/x
  3. Step 3: Cross multiply
    2,788.86x = 4,183.98 × 841.06
  4. Step 4: Simplify right side
    2,788.86x = 3,518,964.60
  5. Step 5: Solve for x
    x = 3,518,964.60/2,788.86
  6. Step 6: Final answer
    x = 1,261.79

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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.