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Finding the Fourth Proportional to 1,435.11, 2,152.32 and 461.49

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Solution

The fourth proportional to 1,435.11, 2,152.32 and 461.49 is: 692.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.11 : 2,152.32 = 461.49 : x
  2. Step 2: Convert to fraction form
    1,435.11/2,152.32 = 461.49/x
  3. Step 3: Cross multiply
    1,435.11x = 2,152.32 × 461.49
  4. Step 4: Simplify right side
    1,435.11x = 993,274.16
  5. Step 5: Solve for x
    x = 993,274.16/1,435.11
  6. Step 6: Final answer
    x = 692.12

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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.