Home / 4,415.13-6,622.68-1,128.22

Finding the Fourth Proportional to 4,415.13, 6,622.68 and 1,128.22

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Solution

The fourth proportional to 4,415.13, 6,622.68 and 1,128.22 is: 1,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.13 : 6,622.68 = 1,128.22 : x
  2. Step 2: Convert to fraction form
    4,415.13/6,622.68 = 1,128.22/x
  3. Step 3: Cross multiply
    4,415.13x = 6,622.68 × 1,128.22
  4. Step 4: Simplify right side
    4,415.13x = 7,471,852.54
  5. Step 5: Solve for x
    x = 7,471,852.54/4,415.13
  6. Step 6: Final answer
    x = 1,692.33

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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.