Home / 1,197.10-1,795.49-427.50

Finding the Fourth Proportional to 1,197.10, 1,795.49 and 427.50

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Solution

The fourth proportional to 1,197.10, 1,795.49 and 427.50 is: 641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.10 : 1,795.49 = 427.50 : x
  2. Step 2: Convert to fraction form
    1,197.10/1,795.49 = 427.50/x
  3. Step 3: Cross multiply
    1,197.10x = 1,795.49 × 427.50
  4. Step 4: Simplify right side
    1,197.10x = 767,571.98
  5. Step 5: Solve for x
    x = 767,571.98/1,197.10
  6. Step 6: Final answer
    x = 641.19

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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.