Home / 2,835.99-4,245.66-2,108.79

Finding the Fourth Proportional to 2,835.99, 4,245.66 and 2,108.79

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Solution

The fourth proportional to 2,835.99, 4,245.66 and 2,108.79 is: 3,156.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.99 : 4,245.66 = 2,108.79 : x
  2. Step 2: Convert to fraction form
    2,835.99/4,245.66 = 2,108.79/x
  3. Step 3: Cross multiply
    2,835.99x = 4,245.66 × 2,108.79
  4. Step 4: Simplify right side
    2,835.99x = 8,953,205.35
  5. Step 5: Solve for x
    x = 8,953,205.35/2,835.99
  6. Step 6: Final answer
    x = 3,156.99

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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.