Home / 2,782.86-4,170.66-2,488.62

Finding the Fourth Proportional to 2,782.86, 4,170.66 and 2,488.62

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Solution

The fourth proportional to 2,782.86, 4,170.66 and 2,488.62 is: 3,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.86 : 4,170.66 = 2,488.62 : x
  2. Step 2: Convert to fraction form
    2,782.86/4,170.66 = 2,488.62/x
  3. Step 3: Cross multiply
    2,782.86x = 4,170.66 × 2,488.62
  4. Step 4: Simplify right side
    2,782.86x = 10,379,187.89
  5. Step 5: Solve for x
    x = 10,379,187.89/2,782.86
  6. Step 6: Final answer
    x = 3,729.68

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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.