Home / 3,076.03-4,245.02-1,678.78

Finding the Fourth Proportional to 3,076.03, 4,245.02 and 1,678.78

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Solution

The fourth proportional to 3,076.03, 4,245.02 and 1,678.78 is: 2,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.03 : 4,245.02 = 1,678.78 : x
  2. Step 2: Convert to fraction form
    3,076.03/4,245.02 = 1,678.78/x
  3. Step 3: Cross multiply
    3,076.03x = 4,245.02 × 1,678.78
  4. Step 4: Simplify right side
    3,076.03x = 7,126,467.33
  5. Step 5: Solve for x
    x = 7,126,467.33/3,076.03
  6. Step 6: Final answer
    x = 2,316.77

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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.