Home / 1,323.36-1,983.56-629.46

Finding the Fourth Proportional to 1,323.36, 1,983.56 and 629.46

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Solution

The fourth proportional to 1,323.36, 1,983.56 and 629.46 is: 943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.36 : 1,983.56 = 629.46 : x
  2. Step 2: Convert to fraction form
    1,323.36/1,983.56 = 629.46/x
  3. Step 3: Cross multiply
    1,323.36x = 1,983.56 × 629.46
  4. Step 4: Simplify right side
    1,323.36x = 1,248,568.53
  5. Step 5: Solve for x
    x = 1,248,568.53/1,323.36
  6. Step 6: Final answer
    x = 943.48

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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.