Home / 5,390.18-8,086.64-1,692.33

Finding the Fourth Proportional to 5,390.18, 8,086.64 and 1,692.33

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Solution

The fourth proportional to 5,390.18, 8,086.64 and 1,692.33 is: 2,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.18 : 8,086.64 = 1,692.33 : x
  2. Step 2: Convert to fraction form
    5,390.18/8,086.64 = 1,692.33/x
  3. Step 3: Cross multiply
    5,390.18x = 8,086.64 × 1,692.33
  4. Step 4: Simplify right side
    5,390.18x = 13,685,255.01
  5. Step 5: Solve for x
    x = 13,685,255.01/5,390.18
  6. Step 6: Final answer
    x = 2,538.93

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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.