Home / 2,086.40-2,879.03-1,246.93

Finding the Fourth Proportional to 2,086.40, 2,879.03 and 1,246.93

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Solution

The fourth proportional to 2,086.40, 2,879.03 and 1,246.93 is: 1,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.40 : 2,879.03 = 1,246.93 : x
  2. Step 2: Convert to fraction form
    2,086.40/2,879.03 = 1,246.93/x
  3. Step 3: Cross multiply
    2,086.40x = 2,879.03 × 1,246.93
  4. Step 4: Simplify right side
    2,086.40x = 3,589,950.92
  5. Step 5: Solve for x
    x = 3,589,950.92/2,086.40
  6. Step 6: Final answer
    x = 1,720.65

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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.