Home / 6,872.10-10,307.01-1,940.61

Finding the Fourth Proportional to 6,872.10, 10,307.01 and 1,940.61

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Solution

The fourth proportional to 6,872.10, 10,307.01 and 1,940.61 is: 2,910.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.10 : 10,307.01 = 1,940.61 : x
  2. Step 2: Convert to fraction form
    6,872.10/10,307.01 = 1,940.61/x
  3. Step 3: Cross multiply
    6,872.10x = 10,307.01 × 1,940.61
  4. Step 4: Simplify right side
    6,872.10x = 20,001,886.68
  5. Step 5: Solve for x
    x = 20,001,886.68/6,872.10
  6. Step 6: Final answer
    x = 2,910.59

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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.