Home / 1,424.15-2,136.21-1,180.16

Finding the Fourth Proportional to 1,424.15, 2,136.21 and 1,180.16

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Solution

The fourth proportional to 1,424.15, 2,136.21 and 1,180.16 is: 1,770.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.15 : 2,136.21 = 1,180.16 : x
  2. Step 2: Convert to fraction form
    1,424.15/2,136.21 = 1,180.16/x
  3. Step 3: Cross multiply
    1,424.15x = 2,136.21 × 1,180.16
  4. Step 4: Simplify right side
    1,424.15x = 2,521,063.69
  5. Step 5: Solve for x
    x = 2,521,063.69/1,424.15
  6. Step 6: Final answer
    x = 1,770.22

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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.