Home / 4,190.02-6,286.40-1,998.46

Finding the Fourth Proportional to 4,190.02, 6,286.40 and 1,998.46

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Solution

The fourth proportional to 4,190.02, 6,286.40 and 1,998.46 is: 2,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.02 : 6,286.40 = 1,998.46 : x
  2. Step 2: Convert to fraction form
    4,190.02/6,286.40 = 1,998.46/x
  3. Step 3: Cross multiply
    4,190.02x = 6,286.40 × 1,998.46
  4. Step 4: Simplify right side
    4,190.02x = 12,563,136.36
  5. Step 5: Solve for x
    x = 12,563,136.36/4,190.02
  6. Step 6: Final answer
    x = 2,998.35

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Half scale
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Double scale
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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.