Home / 1,514.36-2,087.70-1,279.28

Finding the Fourth Proportional to 1,514.36, 2,087.70 and 1,279.28

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Solution

The fourth proportional to 1,514.36, 2,087.70 and 1,279.28 is: 1,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.36 : 2,087.70 = 1,279.28 : x
  2. Step 2: Convert to fraction form
    1,514.36/2,087.70 = 1,279.28/x
  3. Step 3: Cross multiply
    1,514.36x = 2,087.70 × 1,279.28
  4. Step 4: Simplify right side
    1,514.36x = 2,670,752.86
  5. Step 5: Solve for x
    x = 2,670,752.86/1,514.36
  6. Step 6: Final answer
    x = 1,763.62

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1.5x scale

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.