Home / 3,406.08-5,107.80-1,325.81

Finding the Fourth Proportional to 3,406.08, 5,107.80 and 1,325.81

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Solution

The fourth proportional to 3,406.08, 5,107.80 and 1,325.81 is: 1,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.08 : 5,107.80 = 1,325.81 : x
  2. Step 2: Convert to fraction form
    3,406.08/5,107.80 = 1,325.81/x
  3. Step 3: Cross multiply
    3,406.08x = 5,107.80 × 1,325.81
  4. Step 4: Simplify right side
    3,406.08x = 6,771,946.78
  5. Step 5: Solve for x
    x = 6,771,946.78/3,406.08
  6. Step 6: Final answer
    x = 1,988.19

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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.