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Finding the Fourth Proportional to 1,723.90, 2,585.86 and 569.65

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Solution

The fourth proportional to 1,723.90, 2,585.86 and 569.65 is: 854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.90 : 2,585.86 = 569.65 : x
  2. Step 2: Convert to fraction form
    1,723.90/2,585.86 = 569.65/x
  3. Step 3: Cross multiply
    1,723.90x = 2,585.86 × 569.65
  4. Step 4: Simplify right side
    1,723.90x = 1,473,027.26
  5. Step 5: Solve for x
    x = 1,473,027.26/1,723.90
  6. Step 6: Final answer
    x = 854.47

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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.