Home / 1,490.52-2,054.91-1,279.79

Finding the Fourth Proportional to 1,490.52, 2,054.91 and 1,279.79

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Solution

The fourth proportional to 1,490.52, 2,054.91 and 1,279.79 is: 1,764.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.52 : 2,054.91 = 1,279.79 : x
  2. Step 2: Convert to fraction form
    1,490.52/2,054.91 = 1,279.79/x
  3. Step 3: Cross multiply
    1,490.52x = 2,054.91 × 1,279.79
  4. Step 4: Simplify right side
    1,490.52x = 2,629,842.99
  5. Step 5: Solve for x
    x = 2,629,842.99/1,490.52
  6. Step 6: Final answer
    x = 1,764.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.