Home / 6,967.69-9,615.33-3,780.91

Finding the Fourth Proportional to 6,967.69, 9,615.33 and 3,780.91

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Solution

The fourth proportional to 6,967.69, 9,615.33 and 3,780.91 is: 5,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,967.69 : 9,615.33 = 3,780.91 : x
  2. Step 2: Convert to fraction form
    6,967.69/9,615.33 = 3,780.91/x
  3. Step 3: Cross multiply
    6,967.69x = 9,615.33 × 3,780.91
  4. Step 4: Simplify right side
    6,967.69x = 36,354,697.35
  5. Step 5: Solve for x
    x = 36,354,697.35/6,967.69
  6. Step 6: Final answer
    x = 5,217.61

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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.