Home / 1,260.26-1,890.37-382.76

Finding the Fourth Proportional to 1,260.26, 1,890.37 and 382.76

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Solution

The fourth proportional to 1,260.26, 1,890.37 and 382.76 is: 574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.26 : 1,890.37 = 382.76 : x
  2. Step 2: Convert to fraction form
    1,260.26/1,890.37 = 382.76/x
  3. Step 3: Cross multiply
    1,260.26x = 1,890.37 × 382.76
  4. Step 4: Simplify right side
    1,260.26x = 723,556.14
  5. Step 5: Solve for x
    x = 723,556.14/1,260.26
  6. Step 6: Final answer
    x = 574.13

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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.