Home / 1,448.19-2,173.44-755.07

Finding the Fourth Proportional to 1,448.19, 2,173.44 and 755.07

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Solution

The fourth proportional to 1,448.19, 2,173.44 and 755.07 is: 1,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.19 : 2,173.44 = 755.07 : x
  2. Step 2: Convert to fraction form
    1,448.19/2,173.44 = 755.07/x
  3. Step 3: Cross multiply
    1,448.19x = 2,173.44 × 755.07
  4. Step 4: Simplify right side
    1,448.19x = 1,641,099.34
  5. Step 5: Solve for x
    x = 1,641,099.34/1,448.19
  6. Step 6: Final answer
    x = 1,133.21

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1.5x scale

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.