Home / 4,415.11-6,622.80-1,128.27

Finding the Fourth Proportional to 4,415.11, 6,622.80 and 1,128.27

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Solution

The fourth proportional to 4,415.11, 6,622.80 and 1,128.27 is: 1,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.11 : 6,622.80 = 1,128.27 : x
  2. Step 2: Convert to fraction form
    4,415.11/6,622.80 = 1,128.27/x
  3. Step 3: Cross multiply
    4,415.11x = 6,622.80 × 1,128.27
  4. Step 4: Simplify right side
    4,415.11x = 7,472,306.56
  5. Step 5: Solve for x
    x = 7,472,306.56/4,415.11
  6. Step 6: Final answer
    x = 1,692.44

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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.