Home / 1,441.45-2,161.92-401.53

Finding the Fourth Proportional to 1,441.45, 2,161.92 and 401.53

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Solution

The fourth proportional to 1,441.45, 2,161.92 and 401.53 is: 602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.45 : 2,161.92 = 401.53 : x
  2. Step 2: Convert to fraction form
    1,441.45/2,161.92 = 401.53/x
  3. Step 3: Cross multiply
    1,441.45x = 2,161.92 × 401.53
  4. Step 4: Simplify right side
    1,441.45x = 868,075.74
  5. Step 5: Solve for x
    x = 868,075.74/1,441.45
  6. Step 6: Final answer
    x = 602.22

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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.