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Finding the Fourth Proportional to 573.36, 853.82 and 571.74

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Solution

The fourth proportional to 573.36, 853.82 and 571.74 is: 851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.36 : 853.82 = 571.74 : x
  2. Step 2: Convert to fraction form
    573.36/853.82 = 571.74/x
  3. Step 3: Cross multiply
    573.36x = 853.82 × 571.74
  4. Step 4: Simplify right side
    573.36x = 488,160.19
  5. Step 5: Solve for x
    x = 488,160.19/573.36
  6. Step 6: Final answer
    x = 851.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.