Home / 6,870.34-10,304.97-1,939.87

Finding the Fourth Proportional to 6,870.34, 10,304.97 and 1,939.87

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Solution

The fourth proportional to 6,870.34, 10,304.97 and 1,939.87 is: 2,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.34 : 10,304.97 = 1,939.87 : x
  2. Step 2: Convert to fraction form
    6,870.34/10,304.97 = 1,939.87/x
  3. Step 3: Cross multiply
    6,870.34x = 10,304.97 × 1,939.87
  4. Step 4: Simplify right side
    6,870.34x = 19,990,302.15
  5. Step 5: Solve for x
    x = 19,990,302.15/6,870.34
  6. Step 6: Final answer
    x = 2,909.65

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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.