Home / 6,974.20-10,461.42-1,780.12

Finding the Fourth Proportional to 6,974.20, 10,461.42 and 1,780.12

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Solution

The fourth proportional to 6,974.20, 10,461.42 and 1,780.12 is: 2,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974.20 : 10,461.42 = 1,780.12 : x
  2. Step 2: Convert to fraction form
    6,974.20/10,461.42 = 1,780.12/x
  3. Step 3: Cross multiply
    6,974.20x = 10,461.42 × 1,780.12
  4. Step 4: Simplify right side
    6,974.20x = 18,622,582.97
  5. Step 5: Solve for x
    x = 18,622,582.97/6,974.20
  6. Step 6: Final answer
    x = 2,670.21

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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.