Home / 5,104.13-7,655.22-1,405.43

Finding the Fourth Proportional to 5,104.13, 7,655.22 and 1,405.43

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Solution

The fourth proportional to 5,104.13, 7,655.22 and 1,405.43 is: 2,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.13 : 7,655.22 = 1,405.43 : x
  2. Step 2: Convert to fraction form
    5,104.13/7,655.22 = 1,405.43/x
  3. Step 3: Cross multiply
    5,104.13x = 7,655.22 × 1,405.43
  4. Step 4: Simplify right side
    5,104.13x = 10,758,875.84
  5. Step 5: Solve for x
    x = 10,758,875.84/5,104.13
  6. Step 6: Final answer
    x = 2,107.88

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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.