Home / 6,989.26-9,645.20-3,845.65

Finding the Fourth Proportional to 6,989.26, 9,645.20 and 3,845.65

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Solution

The fourth proportional to 6,989.26, 9,645.20 and 3,845.65 is: 5,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.26 : 9,645.20 = 3,845.65 : x
  2. Step 2: Convert to fraction form
    6,989.26/9,645.20 = 3,845.65/x
  3. Step 3: Cross multiply
    6,989.26x = 9,645.20 × 3,845.65
  4. Step 4: Simplify right side
    6,989.26x = 37,092,044.15
  5. Step 5: Solve for x
    x = 37,092,044.15/6,989.26
  6. Step 6: Final answer
    x = 5,307.01

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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.