Home / 5,118.63-7,675.87-1,998.19

Finding the Fourth Proportional to 5,118.63, 7,675.87 and 1,998.19

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Solution

The fourth proportional to 5,118.63, 7,675.87 and 1,998.19 is: 2,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.63 : 7,675.87 = 1,998.19 : x
  2. Step 2: Convert to fraction form
    5,118.63/7,675.87 = 1,998.19/x
  3. Step 3: Cross multiply
    5,118.63x = 7,675.87 × 1,998.19
  4. Step 4: Simplify right side
    5,118.63x = 15,337,846.68
  5. Step 5: Solve for x
    x = 15,337,846.68/5,118.63
  6. Step 6: Final answer
    x = 2,996.47

Related Problems

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Half scale
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Double scale
Find fourth proportional to 5,119.63, 7,677.37 and 1,999.19
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.