Home / 7,942.58-10,960.78-4,405.72

Finding the Fourth Proportional to 7,942.58, 10,960.78 and 4,405.72

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Solution

The fourth proportional to 7,942.58, 10,960.78 and 4,405.72 is: 6,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.58 : 10,960.78 = 4,405.72 : x
  2. Step 2: Convert to fraction form
    7,942.58/10,960.78 = 4,405.72/x
  3. Step 3: Cross multiply
    7,942.58x = 10,960.78 × 4,405.72
  4. Step 4: Simplify right side
    7,942.58x = 48,290,127.66
  5. Step 5: Solve for x
    x = 48,290,127.66/7,942.58
  6. Step 6: Final answer
    x = 6,079.90

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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.