Home / 2,795.65-3,855.85-1,900.07

Finding the Fourth Proportional to 2,795.65, 3,855.85 and 1,900.07

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Solution

The fourth proportional to 2,795.65, 3,855.85 and 1,900.07 is: 2,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,795.65 : 3,855.85 = 1,900.07 : x
  2. Step 2: Convert to fraction form
    2,795.65/3,855.85 = 1,900.07/x
  3. Step 3: Cross multiply
    2,795.65x = 3,855.85 × 1,900.07
  4. Step 4: Simplify right side
    2,795.65x = 7,326,384.91
  5. Step 5: Solve for x
    x = 7,326,384.91/2,795.65
  6. Step 6: Final answer
    x = 2,620.64

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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.