Home / 3,406.10-5,107.80-1,325.82

Finding the Fourth Proportional to 3,406.10, 5,107.80 and 1,325.82

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Solution

The fourth proportional to 3,406.10, 5,107.80 and 1,325.82 is: 1,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.10 : 5,107.80 = 1,325.82 : x
  2. Step 2: Convert to fraction form
    3,406.10/5,107.80 = 1,325.82/x
  3. Step 3: Cross multiply
    3,406.10x = 5,107.80 × 1,325.82
  4. Step 4: Simplify right side
    3,406.10x = 6,772,023.40
  5. Step 5: Solve for x
    x = 6,772,023.40/3,406.10
  6. Step 6: Final answer
    x = 1,988.21

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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.