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Finding the Fourth Proportional to 1,435.69, 2,153.33 and 461.66

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Solution

The fourth proportional to 1,435.69, 2,153.33 and 461.66 is: 692.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.69 : 2,153.33 = 461.66 : x
  2. Step 2: Convert to fraction form
    1,435.69/2,153.33 = 461.66/x
  3. Step 3: Cross multiply
    1,435.69x = 2,153.33 × 461.66
  4. Step 4: Simplify right side
    1,435.69x = 994,104.02
  5. Step 5: Solve for x
    x = 994,104.02/1,435.69
  6. Step 6: Final answer
    x = 692.42

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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.