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Finding the Fourth Proportional to 6,451.25, 9,678.50 and 1,834.25

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Solution

The fourth proportional to 6,451.25, 9,678.50 and 1,834.25 is: 2,751.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.25 : 9,678.50 = 1,834.25 : x
  2. Step 2: Convert to fraction form
    6,451.25/9,678.50 = 1,834.25/x
  3. Step 3: Cross multiply
    6,451.25x = 9,678.50 × 1,834.25
  4. Step 4: Simplify right side
    6,451.25x = 17,752,788.63
  5. Step 5: Solve for x
    x = 17,752,788.63/6,451.25
  6. Step 6: Final answer
    x = 2,751.84

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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.