Home / 3,405.38-4,699.77-2,288.65

Finding the Fourth Proportional to 3,405.38, 4,699.77 and 2,288.65

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Solution

The fourth proportional to 3,405.38, 4,699.77 and 2,288.65 is: 3,158.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.38 : 4,699.77 = 2,288.65 : x
  2. Step 2: Convert to fraction form
    3,405.38/4,699.77 = 2,288.65/x
  3. Step 3: Cross multiply
    3,405.38x = 4,699.77 × 2,288.65
  4. Step 4: Simplify right side
    3,405.38x = 10,756,093.67
  5. Step 5: Solve for x
    x = 10,756,093.67/3,405.38
  6. Step 6: Final answer
    x = 3,158.56

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1.5x scale

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.