Home / 3,390.21-5,082.93-1,310.06

Finding the Fourth Proportional to 3,390.21, 5,082.93 and 1,310.06

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Solution

The fourth proportional to 3,390.21, 5,082.93 and 1,310.06 is: 1,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.21 : 5,082.93 = 1,310.06 : x
  2. Step 2: Convert to fraction form
    3,390.21/5,082.93 = 1,310.06/x
  3. Step 3: Cross multiply
    3,390.21x = 5,082.93 × 1,310.06
  4. Step 4: Simplify right side
    3,390.21x = 6,658,917.86
  5. Step 5: Solve for x
    x = 6,658,917.86/3,390.21
  6. Step 6: Final answer
    x = 1,964.16

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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.