Home / 5,202.19-7,178.45-3,077.80

Finding the Fourth Proportional to 5,202.19, 7,178.45 and 3,077.80

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Solution

The fourth proportional to 5,202.19, 7,178.45 and 3,077.80 is: 4,247.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,202.19 : 7,178.45 = 3,077.80 : x
  2. Step 2: Convert to fraction form
    5,202.19/7,178.45 = 3,077.80/x
  3. Step 3: Cross multiply
    5,202.19x = 7,178.45 × 3,077.80
  4. Step 4: Simplify right side
    5,202.19x = 22,093,797.52
  5. Step 5: Solve for x
    x = 22,093,797.52/5,202.19
  6. Step 6: Final answer
    x = 4,247.02

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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.