Home / 2,756.30-4,131-1,111.94

Finding the Fourth Proportional to 2,756.30, 4,131 and 1,111.94

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Solution

The fourth proportional to 2,756.30, 4,131 and 1,111.94 is: 1,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.30 : 4,131 = 1,111.94 : x
  2. Step 2: Convert to fraction form
    2,756.30/4,131 = 1,111.94/x
  3. Step 3: Cross multiply
    2,756.30x = 4,131 × 1,111.94
  4. Step 4: Simplify right side
    2,756.30x = 4,593,403.49
  5. Step 5: Solve for x
    x = 4,593,403.49/2,756.30
  6. Step 6: Final answer
    x = 1,666.51

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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.