Home / 3,090.86-4,266.06-2,015.48

Finding the Fourth Proportional to 3,090.86, 4,266.06 and 2,015.48

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Solution

The fourth proportional to 3,090.86, 4,266.06 and 2,015.48 is: 2,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.86 : 4,266.06 = 2,015.48 : x
  2. Step 2: Convert to fraction form
    3,090.86/4,266.06 = 2,015.48/x
  3. Step 3: Cross multiply
    3,090.86x = 4,266.06 × 2,015.48
  4. Step 4: Simplify right side
    3,090.86x = 8,598,161.72
  5. Step 5: Solve for x
    x = 8,598,161.72/3,090.86
  6. Step 6: Final answer
    x = 2,781.80

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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.