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Finding the Fourth Proportional to 1,683.63, 2,524.83 and 709.80

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Solution

The fourth proportional to 1,683.63, 2,524.83 and 709.80 is: 1,064.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.63 : 2,524.83 = 709.80 : x
  2. Step 2: Convert to fraction form
    1,683.63/2,524.83 = 709.80/x
  3. Step 3: Cross multiply
    1,683.63x = 2,524.83 × 709.80
  4. Step 4: Simplify right side
    1,683.63x = 1,792,133.80
  5. Step 5: Solve for x
    x = 1,792,133.80/1,683.63
  6. Step 6: Final answer
    x = 1,064.45

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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.