Home / 6,905.90-10,357.35-1,974.21

Finding the Fourth Proportional to 6,905.90, 10,357.35 and 1,974.21

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Solution

The fourth proportional to 6,905.90, 10,357.35 and 1,974.21 is: 2,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.90 : 10,357.35 = 1,974.21 : x
  2. Step 2: Convert to fraction form
    6,905.90/10,357.35 = 1,974.21/x
  3. Step 3: Cross multiply
    6,905.90x = 10,357.35 × 1,974.21
  4. Step 4: Simplify right side
    6,905.90x = 20,447,583.94
  5. Step 5: Solve for x
    x = 20,447,583.94/6,905.90
  6. Step 6: Final answer
    x = 2,960.89

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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.