Home / 5,391.12-8,085.90-1,692.36

Finding the Fourth Proportional to 5,391.12, 8,085.90 and 1,692.36

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Solution

The fourth proportional to 5,391.12, 8,085.90 and 1,692.36 is: 2,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.12 : 8,085.90 = 1,692.36 : x
  2. Step 2: Convert to fraction form
    5,391.12/8,085.90 = 1,692.36/x
  3. Step 3: Cross multiply
    5,391.12x = 8,085.90 × 1,692.36
  4. Step 4: Simplify right side
    5,391.12x = 13,684,253.72
  5. Step 5: Solve for x
    x = 13,684,253.72/5,391.12
  6. Step 6: Final answer
    x = 2,538.30

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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.