Home / 2,140.10-3,204.36-1,111.94

Finding the Fourth Proportional to 2,140.10, 3,204.36 and 1,111.94

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Solution

The fourth proportional to 2,140.10, 3,204.36 and 1,111.94 is: 1,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.10 : 3,204.36 = 1,111.94 : x
  2. Step 2: Convert to fraction form
    2,140.10/3,204.36 = 1,111.94/x
  3. Step 3: Cross multiply
    2,140.10x = 3,204.36 × 1,111.94
  4. Step 4: Simplify right side
    2,140.10x = 3,563,056.06
  5. Step 5: Solve for x
    x = 3,563,056.06/2,140.10
  6. Step 6: Final answer
    x = 1,664.90

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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.