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Finding the Fourth Proportional to 1,119.09, 1,675.98 and 569.91

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Solution

The fourth proportional to 1,119.09, 1,675.98 and 569.91 is: 853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.09 : 1,675.98 = 569.91 : x
  2. Step 2: Convert to fraction form
    1,119.09/1,675.98 = 569.91/x
  3. Step 3: Cross multiply
    1,119.09x = 1,675.98 × 569.91
  4. Step 4: Simplify right side
    1,119.09x = 955,157.76
  5. Step 5: Solve for x
    x = 955,157.76/1,119.09
  6. Step 6: Final answer
    x = 853.51

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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.