Home / 3,205.65-4,423.84-1,879.02

Finding the Fourth Proportional to 3,205.65, 4,423.84 and 1,879.02

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Solution

The fourth proportional to 3,205.65, 4,423.84 and 1,879.02 is: 2,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.65 : 4,423.84 = 1,879.02 : x
  2. Step 2: Convert to fraction form
    3,205.65/4,423.84 = 1,879.02/x
  3. Step 3: Cross multiply
    3,205.65x = 4,423.84 × 1,879.02
  4. Step 4: Simplify right side
    3,205.65x = 8,312,483.84
  5. Step 5: Solve for x
    x = 8,312,483.84/3,205.65
  6. Step 6: Final answer
    x = 2,593.07

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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.