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Finding the Fourth Proportional to 6,763.71, 9,333.78 and 3,779.58

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Solution

The fourth proportional to 6,763.71, 9,333.78 and 3,779.58 is: 5,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,763.71 : 9,333.78 = 3,779.58 : x
  2. Step 2: Convert to fraction form
    6,763.71/9,333.78 = 3,779.58/x
  3. Step 3: Cross multiply
    6,763.71x = 9,333.78 × 3,779.58
  4. Step 4: Simplify right side
    6,763.71x = 35,277,768.21
  5. Step 5: Solve for x
    x = 35,277,768.21/6,763.71
  6. Step 6: Final answer
    x = 5,215.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.