Home / 3,079.48-4,249.68-1,900.54

Finding the Fourth Proportional to 3,079.48, 4,249.68 and 1,900.54

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Solution

The fourth proportional to 3,079.48, 4,249.68 and 1,900.54 is: 2,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.48 : 4,249.68 = 1,900.54 : x
  2. Step 2: Convert to fraction form
    3,079.48/4,249.68 = 1,900.54/x
  3. Step 3: Cross multiply
    3,079.48x = 4,249.68 × 1,900.54
  4. Step 4: Simplify right side
    3,079.48x = 8,076,686.83
  5. Step 5: Solve for x
    x = 8,076,686.83/3,079.48
  6. Step 6: Final answer
    x = 2,622.74

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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.