Home / 4,190.60-6,278.70-1,994.60

Finding the Fourth Proportional to 4,190.60, 6,278.70 and 1,994.60

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Solution

The fourth proportional to 4,190.60, 6,278.70 and 1,994.60 is: 2,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.60 : 6,278.70 = 1,994.60 : x
  2. Step 2: Convert to fraction form
    4,190.60/6,278.70 = 1,994.60/x
  3. Step 3: Cross multiply
    4,190.60x = 6,278.70 × 1,994.60
  4. Step 4: Simplify right side
    4,190.60x = 12,523,495.02
  5. Step 5: Solve for x
    x = 12,523,495.02/4,190.60
  6. Step 6: Final answer
    x = 2,988.47

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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.