Home / 2,087.19-2,879.06-1,379.04

Finding the Fourth Proportional to 2,087.19, 2,879.06 and 1,379.04

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Solution

The fourth proportional to 2,087.19, 2,879.06 and 1,379.04 is: 1,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.19 : 2,879.06 = 1,379.04 : x
  2. Step 2: Convert to fraction form
    2,087.19/2,879.06 = 1,379.04/x
  3. Step 3: Cross multiply
    2,087.19x = 2,879.06 × 1,379.04
  4. Step 4: Simplify right side
    2,087.19x = 3,970,332.01
  5. Step 5: Solve for x
    x = 3,970,332.01/2,087.19
  6. Step 6: Final answer
    x = 1,902.24

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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.