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Finding the Fourth Proportional to 1,682.25, 2,520.74 and 1,064.65

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Solution

The fourth proportional to 1,682.25, 2,520.74 and 1,064.65 is: 1,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.25 : 2,520.74 = 1,064.65 : x
  2. Step 2: Convert to fraction form
    1,682.25/2,520.74 = 1,064.65/x
  3. Step 3: Cross multiply
    1,682.25x = 2,520.74 × 1,064.65
  4. Step 4: Simplify right side
    1,682.25x = 2,683,705.84
  5. Step 5: Solve for x
    x = 2,683,705.84/1,682.25
  6. Step 6: Final answer
    x = 1,595.31

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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.