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Finding the Fourth Proportional to 1,724.03, 2,584.58 and 684.77

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Solution

The fourth proportional to 1,724.03, 2,584.58 and 684.77 is: 1,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.03 : 2,584.58 = 684.77 : x
  2. Step 2: Convert to fraction form
    1,724.03/2,584.58 = 684.77/x
  3. Step 3: Cross multiply
    1,724.03x = 2,584.58 × 684.77
  4. Step 4: Simplify right side
    1,724.03x = 1,769,842.85
  5. Step 5: Solve for x
    x = 1,769,842.85/1,724.03
  6. Step 6: Final answer
    x = 1,026.57

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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.