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Finding the Fourth Proportional to 2,001.13, 2,999.45 and 683.65

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Solution

The fourth proportional to 2,001.13, 2,999.45 and 683.65 is: 1,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.13 : 2,999.45 = 683.65 : x
  2. Step 2: Convert to fraction form
    2,001.13/2,999.45 = 683.65/x
  3. Step 3: Cross multiply
    2,001.13x = 2,999.45 × 683.65
  4. Step 4: Simplify right side
    2,001.13x = 2,050,573.99
  5. Step 5: Solve for x
    x = 2,050,573.99/2,001.13
  6. Step 6: Final answer
    x = 1,024.71

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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.