Home / 1,621.51-2,433.14-755.75

Finding the Fourth Proportional to 1,621.51, 2,433.14 and 755.75

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Solution

The fourth proportional to 1,621.51, 2,433.14 and 755.75 is: 1,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.51 : 2,433.14 = 755.75 : x
  2. Step 2: Convert to fraction form
    1,621.51/2,433.14 = 755.75/x
  3. Step 3: Cross multiply
    1,621.51x = 2,433.14 × 755.75
  4. Step 4: Simplify right side
    1,621.51x = 1,838,845.56
  5. Step 5: Solve for x
    x = 1,838,845.56/1,621.51
  6. Step 6: Final answer
    x = 1,134.03

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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.