Home / 5,390.11-8,085.17-1,692.44

Finding the Fourth Proportional to 5,390.11, 8,085.17 and 1,692.44

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Solution

The fourth proportional to 5,390.11, 8,085.17 and 1,692.44 is: 2,538.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.11 : 8,085.17 = 1,692.44 : x
  2. Step 2: Convert to fraction form
    5,390.11/8,085.17 = 1,692.44/x
  3. Step 3: Cross multiply
    5,390.11x = 8,085.17 × 1,692.44
  4. Step 4: Simplify right side
    5,390.11x = 13,683,665.11
  5. Step 5: Solve for x
    x = 13,683,665.11/5,390.11
  6. Step 6: Final answer
    x = 2,538.66

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Double scale
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Similar ratio
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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.