Home / 1,678.15-2,514.39-1,019.62

Finding the Fourth Proportional to 1,678.15, 2,514.39 and 1,019.62

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Solution

The fourth proportional to 1,678.15, 2,514.39 and 1,019.62 is: 1,527.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.15 : 2,514.39 = 1,019.62 : x
  2. Step 2: Convert to fraction form
    1,678.15/2,514.39 = 1,019.62/x
  3. Step 3: Cross multiply
    1,678.15x = 2,514.39 × 1,019.62
  4. Step 4: Simplify right side
    1,678.15x = 2,563,722.33
  5. Step 5: Solve for x
    x = 2,563,722.33/1,678.15
  6. Step 6: Final answer
    x = 1,527.71

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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.