Home / 3,076.19-4,245.15-1,678.94

Finding the Fourth Proportional to 3,076.19, 4,245.15 and 1,678.94

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Solution

The fourth proportional to 3,076.19, 4,245.15 and 1,678.94 is: 2,316.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.19 : 4,245.15 = 1,678.94 : x
  2. Step 2: Convert to fraction form
    3,076.19/4,245.15 = 1,678.94/x
  3. Step 3: Cross multiply
    3,076.19x = 4,245.15 × 1,678.94
  4. Step 4: Simplify right side
    3,076.19x = 7,127,352.14
  5. Step 5: Solve for x
    x = 7,127,352.14/3,076.19
  6. Step 6: Final answer
    x = 2,316.94

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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.