Home / 6,870.22-10,305.95-1,939.93

Finding the Fourth Proportional to 6,870.22, 10,305.95 and 1,939.93

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Solution

The fourth proportional to 6,870.22, 10,305.95 and 1,939.93 is: 2,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.22 : 10,305.95 = 1,939.93 : x
  2. Step 2: Convert to fraction form
    6,870.22/10,305.95 = 1,939.93/x
  3. Step 3: Cross multiply
    6,870.22x = 10,305.95 × 1,939.93
  4. Step 4: Simplify right side
    6,870.22x = 19,992,786.12
  5. Step 5: Solve for x
    x = 19,992,786.12/6,870.22
  6. Step 6: Final answer
    x = 2,910.07

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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.