Home / 4,245.65-6,362.80-1,905.15

Finding the Fourth Proportional to 4,245.65, 6,362.80 and 1,905.15

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Solution

The fourth proportional to 4,245.65, 6,362.80 and 1,905.15 is: 2,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.65 : 6,362.80 = 1,905.15 : x
  2. Step 2: Convert to fraction form
    4,245.65/6,362.80 = 1,905.15/x
  3. Step 3: Cross multiply
    4,245.65x = 6,362.80 × 1,905.15
  4. Step 4: Simplify right side
    4,245.65x = 12,122,118.23
  5. Step 5: Solve for x
    x = 12,122,118.23/4,245.65
  6. Step 6: Final answer
    x = 2,855.19

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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.