Home / 3,072.96-4,239.34-2,077.88

Finding the Fourth Proportional to 3,072.96, 4,239.34 and 2,077.88

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Solution

The fourth proportional to 3,072.96, 4,239.34 and 2,077.88 is: 2,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.96 : 4,239.34 = 2,077.88 : x
  2. Step 2: Convert to fraction form
    3,072.96/4,239.34 = 2,077.88/x
  3. Step 3: Cross multiply
    3,072.96x = 4,239.34 × 2,077.88
  4. Step 4: Simplify right side
    3,072.96x = 8,808,813.41
  5. Step 5: Solve for x
    x = 8,808,813.41/3,072.96
  6. Step 6: Final answer
    x = 2,866.56

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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.