Home / 3,345.65-5,020.23-1,680.04

Finding the Fourth Proportional to 3,345.65, 5,020.23 and 1,680.04

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Solution

The fourth proportional to 3,345.65, 5,020.23 and 1,680.04 is: 2,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.65 : 5,020.23 = 1,680.04 : x
  2. Step 2: Convert to fraction form
    3,345.65/5,020.23 = 1,680.04/x
  3. Step 3: Cross multiply
    3,345.65x = 5,020.23 × 1,680.04
  4. Step 4: Simplify right side
    3,345.65x = 8,434,190.33
  5. Step 5: Solve for x
    x = 8,434,190.33/3,345.65
  6. Step 6: Final answer
    x = 2,520.94

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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.