Home / 1,441.23-2,161.69-401.11

Finding the Fourth Proportional to 1,441.23, 2,161.69 and 401.11

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Solution

The fourth proportional to 1,441.23, 2,161.69 and 401.11 is: 601.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.23 : 2,161.69 = 401.11 : x
  2. Step 2: Convert to fraction form
    1,441.23/2,161.69 = 401.11/x
  3. Step 3: Cross multiply
    1,441.23x = 2,161.69 × 401.11
  4. Step 4: Simplify right side
    1,441.23x = 867,075.48
  5. Step 5: Solve for x
    x = 867,075.48/1,441.23
  6. Step 6: Final answer
    x = 601.62

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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.