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Finding the Fourth Proportional to 1,435.44, 2,151.92 and 569.54

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Solution

The fourth proportional to 1,435.44, 2,151.92 and 569.54 is: 853.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.44 : 2,151.92 = 569.54 : x
  2. Step 2: Convert to fraction form
    1,435.44/2,151.92 = 569.54/x
  3. Step 3: Cross multiply
    1,435.44x = 2,151.92 × 569.54
  4. Step 4: Simplify right side
    1,435.44x = 1,225,604.52
  5. Step 5: Solve for x
    x = 1,225,604.52/1,435.44
  6. Step 6: Final answer
    x = 853.82

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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.