Home / 1,360.23-2,039.28-628.92

Finding the Fourth Proportional to 1,360.23, 2,039.28 and 628.92

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Solution

The fourth proportional to 1,360.23, 2,039.28 and 628.92 is: 942.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.23 : 2,039.28 = 628.92 : x
  2. Step 2: Convert to fraction form
    1,360.23/2,039.28 = 628.92/x
  3. Step 3: Cross multiply
    1,360.23x = 2,039.28 × 628.92
  4. Step 4: Simplify right side
    1,360.23x = 1,282,543.98
  5. Step 5: Solve for x
    x = 1,282,543.98/1,360.23
  6. Step 6: Final answer
    x = 942.89

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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.