Home / 2,835.15-3,911.41-2,090.87

Finding the Fourth Proportional to 2,835.15, 3,911.41 and 2,090.87

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Solution

The fourth proportional to 2,835.15, 3,911.41 and 2,090.87 is: 2,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.15 : 3,911.41 = 2,090.87 : x
  2. Step 2: Convert to fraction form
    2,835.15/3,911.41 = 2,090.87/x
  3. Step 3: Cross multiply
    2,835.15x = 3,911.41 × 2,090.87
  4. Step 4: Simplify right side
    2,835.15x = 8,178,249.83
  5. Step 5: Solve for x
    x = 8,178,249.83/2,835.15
  6. Step 6: Final answer
    x = 2,884.59

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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.