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Finding the Fourth Proportional to 1,556.31, 2,334.22 and 569.03

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Solution

The fourth proportional to 1,556.31, 2,334.22 and 569.03 is: 853.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.31 : 2,334.22 = 569.03 : x
  2. Step 2: Convert to fraction form
    1,556.31/2,334.22 = 569.03/x
  3. Step 3: Cross multiply
    1,556.31x = 2,334.22 × 569.03
  4. Step 4: Simplify right side
    1,556.31x = 1,328,228.11
  5. Step 5: Solve for x
    x = 1,328,228.11/1,556.31
  6. Step 6: Final answer
    x = 853.44

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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.