Home / 3,489.40-4,816.18-1,998.17

Finding the Fourth Proportional to 3,489.40, 4,816.18 and 1,998.17

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Solution

The fourth proportional to 3,489.40, 4,816.18 and 1,998.17 is: 2,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.40 : 4,816.18 = 1,998.17 : x
  2. Step 2: Convert to fraction form
    3,489.40/4,816.18 = 1,998.17/x
  3. Step 3: Cross multiply
    3,489.40x = 4,816.18 × 1,998.17
  4. Step 4: Simplify right side
    3,489.40x = 9,623,522.31
  5. Step 5: Solve for x
    x = 9,623,522.31/3,489.40
  6. Step 6: Final answer
    x = 2,757.93

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,490.40, 4,817.56 and 1,999.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.