Home / 4,162.60-6,245.70-1,970.20

Finding the Fourth Proportional to 4,162.60, 6,245.70 and 1,970.20

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Solution

The fourth proportional to 4,162.60, 6,245.70 and 1,970.20 is: 2,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,162.60 : 6,245.70 = 1,970.20 : x
  2. Step 2: Convert to fraction form
    4,162.60/6,245.70 = 1,970.20/x
  3. Step 3: Cross multiply
    4,162.60x = 6,245.70 × 1,970.20
  4. Step 4: Simplify right side
    4,162.60x = 12,305,278.14
  5. Step 5: Solve for x
    x = 12,305,278.14/4,162.60
  6. Step 6: Final answer
    x = 2,956.15

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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.