Home / 2,960.23-4,440.80-1,111.09

Finding the Fourth Proportional to 2,960.23, 4,440.80 and 1,111.09

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Solution

The fourth proportional to 2,960.23, 4,440.80 and 1,111.09 is: 1,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.23 : 4,440.80 = 1,111.09 : x
  2. Step 2: Convert to fraction form
    2,960.23/4,440.80 = 1,111.09/x
  3. Step 3: Cross multiply
    2,960.23x = 4,440.80 × 1,111.09
  4. Step 4: Simplify right side
    2,960.23x = 4,934,128.47
  5. Step 5: Solve for x
    x = 4,934,128.47/2,960.23
  6. Step 6: Final answer
    x = 1,666.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.