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Finding the Fourth Proportional to 1,450.74, 2,001.81 and 829.62

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Solution

The fourth proportional to 1,450.74, 2,001.81 and 829.62 is: 1,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.74 : 2,001.81 = 829.62 : x
  2. Step 2: Convert to fraction form
    1,450.74/2,001.81 = 829.62/x
  3. Step 3: Cross multiply
    1,450.74x = 2,001.81 × 829.62
  4. Step 4: Simplify right side
    1,450.74x = 1,660,741.61
  5. Step 5: Solve for x
    x = 1,660,741.61/1,450.74
  6. Step 6: Final answer
    x = 1,144.75

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1.5x scale

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.