Home / 4,415.51-6,623.24-1,128.60

Finding the Fourth Proportional to 4,415.51, 6,623.24 and 1,128.60

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Solution

The fourth proportional to 4,415.51, 6,623.24 and 1,128.60 is: 1,692.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.51 : 6,623.24 = 1,128.60 : x
  2. Step 2: Convert to fraction form
    4,415.51/6,623.24 = 1,128.60/x
  3. Step 3: Cross multiply
    4,415.51x = 6,623.24 × 1,128.60
  4. Step 4: Simplify right side
    4,415.51x = 7,474,991.49
  5. Step 5: Solve for x
    x = 7,474,991.49/4,415.51
  6. Step 6: Final answer
    x = 1,692.89

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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.