Home / 4,188.69-6,282.90-1,998.99

Finding the Fourth Proportional to 4,188.69, 6,282.90 and 1,998.99

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Solution

The fourth proportional to 4,188.69, 6,282.90 and 1,998.99 is: 2,998.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.69 : 6,282.90 = 1,998.99 : x
  2. Step 2: Convert to fraction form
    4,188.69/6,282.90 = 1,998.99/x
  3. Step 3: Cross multiply
    4,188.69x = 6,282.90 × 1,998.99
  4. Step 4: Simplify right side
    4,188.69x = 12,559,454.27
  5. Step 5: Solve for x
    x = 12,559,454.27/4,188.69
  6. Step 6: Final answer
    x = 2,998.42

Related Problems

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Half scale
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Double scale
Find fourth proportional to 4,189.69, 6,284.40 and 1,999.99
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.