Home / 1,360.30-2,039.60-628.94

Finding the Fourth Proportional to 1,360.30, 2,039.60 and 628.94

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Solution

The fourth proportional to 1,360.30, 2,039.60 and 628.94 is: 943.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.30 : 2,039.60 = 628.94 : x
  2. Step 2: Convert to fraction form
    1,360.30/2,039.60 = 628.94/x
  3. Step 3: Cross multiply
    1,360.30x = 2,039.60 × 628.94
  4. Step 4: Simplify right side
    1,360.30x = 1,282,786.02
  5. Step 5: Solve for x
    x = 1,282,786.02/1,360.30
  6. Step 6: Final answer
    x = 943.02

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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.