Home / 6,940.36-9,578.04-4,109.35

Finding the Fourth Proportional to 6,940.36, 9,578.04 and 4,109.35

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Solution

The fourth proportional to 6,940.36, 9,578.04 and 4,109.35 is: 5,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.36 : 9,578.04 = 4,109.35 : x
  2. Step 2: Convert to fraction form
    6,940.36/9,578.04 = 4,109.35/x
  3. Step 3: Cross multiply
    6,940.36x = 9,578.04 × 4,109.35
  4. Step 4: Simplify right side
    6,940.36x = 39,359,518.67
  5. Step 5: Solve for x
    x = 39,359,518.67/6,940.36
  6. Step 6: Final answer
    x = 5,671.11

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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.