Home / 2,285.65-3,424.23-1,308.79

Finding the Fourth Proportional to 2,285.65, 3,424.23 and 1,308.79

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Solution

The fourth proportional to 2,285.65, 3,424.23 and 1,308.79 is: 1,960.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.65 : 3,424.23 = 1,308.79 : x
  2. Step 2: Convert to fraction form
    2,285.65/3,424.23 = 1,308.79/x
  3. Step 3: Cross multiply
    2,285.65x = 3,424.23 × 1,308.79
  4. Step 4: Simplify right side
    2,285.65x = 4,481,597.98
  5. Step 5: Solve for x
    x = 4,481,597.98/2,285.65
  6. Step 6: Final answer
    x = 1,960.75

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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.