Home / 4,853.80-7,277.10-2,078.20

Finding the Fourth Proportional to 4,853.80, 7,277.10 and 2,078.20

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Solution

The fourth proportional to 4,853.80, 7,277.10 and 2,078.20 is: 3,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.80 : 7,277.10 = 2,078.20 : x
  2. Step 2: Convert to fraction form
    4,853.80/7,277.10 = 2,078.20/x
  3. Step 3: Cross multiply
    4,853.80x = 7,277.10 × 2,078.20
  4. Step 4: Simplify right side
    4,853.80x = 15,123,269.22
  5. Step 5: Solve for x
    x = 15,123,269.22/4,853.80
  6. Step 6: Final answer
    x = 3,115.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.