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Finding the Fourth Proportional to 6,451.22, 9,678.45 and 1,834.22

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Solution

The fourth proportional to 6,451.22, 9,678.45 and 1,834.22 is: 2,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.22 : 9,678.45 = 1,834.22 : x
  2. Step 2: Convert to fraction form
    6,451.22/9,678.45 = 1,834.22/x
  3. Step 3: Cross multiply
    6,451.22x = 9,678.45 × 1,834.22
  4. Step 4: Simplify right side
    6,451.22x = 17,752,430.76
  5. Step 5: Solve for x
    x = 17,752,430.76/6,451.22
  6. Step 6: Final answer
    x = 2,751.79

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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.