Home / 7,111.64-10,664.76-3,411.56

Finding the Fourth Proportional to 7,111.64, 10,664.76 and 3,411.56

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Solution

The fourth proportional to 7,111.64, 10,664.76 and 3,411.56 is: 5,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.64 : 10,664.76 = 3,411.56 : x
  2. Step 2: Convert to fraction form
    7,111.64/10,664.76 = 3,411.56/x
  3. Step 3: Cross multiply
    7,111.64x = 10,664.76 × 3,411.56
  4. Step 4: Simplify right side
    7,111.64x = 36,383,468.63
  5. Step 5: Solve for x
    x = 36,383,468.63/7,111.64
  6. Step 6: Final answer
    x = 5,116.04

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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.