Home / 1,260.13-1,889.80-382.60

Finding the Fourth Proportional to 1,260.13, 1,889.80 and 382.60

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Solution

The fourth proportional to 1,260.13, 1,889.80 and 382.60 is: 573.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.13 : 1,889.80 = 382.60 : x
  2. Step 2: Convert to fraction form
    1,260.13/1,889.80 = 382.60/x
  3. Step 3: Cross multiply
    1,260.13x = 1,889.80 × 382.60
  4. Step 4: Simplify right side
    1,260.13x = 723,037.48
  5. Step 5: Solve for x
    x = 723,037.48/1,260.13
  6. Step 6: Final answer
    x = 573.78

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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.