Home / 7,940.90-10,959.11-4,405.25

Finding the Fourth Proportional to 7,940.90, 10,959.11 and 4,405.25

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Solution

The fourth proportional to 7,940.90, 10,959.11 and 4,405.25 is: 6,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.90 : 10,959.11 = 4,405.25 : x
  2. Step 2: Convert to fraction form
    7,940.90/10,959.11 = 4,405.25/x
  3. Step 3: Cross multiply
    7,940.90x = 10,959.11 × 4,405.25
  4. Step 4: Simplify right side
    7,940.90x = 48,277,619.33
  5. Step 5: Solve for x
    x = 48,277,619.33/7,940.90
  6. Step 6: Final answer
    x = 6,079.62

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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.