Home / 2,809.23-4,205.68-1,635.65

Finding the Fourth Proportional to 2,809.23, 4,205.68 and 1,635.65

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Solution

The fourth proportional to 2,809.23, 4,205.68 and 1,635.65 is: 2,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.23 : 4,205.68 = 1,635.65 : x
  2. Step 2: Convert to fraction form
    2,809.23/4,205.68 = 1,635.65/x
  3. Step 3: Cross multiply
    2,809.23x = 4,205.68 × 1,635.65
  4. Step 4: Simplify right side
    2,809.23x = 6,879,005.89
  5. Step 5: Solve for x
    x = 6,879,005.89/2,809.23
  6. Step 6: Final answer
    x = 2,448.72

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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.