Home / 3,354.21-5,030.91-1,405.35

Finding the Fourth Proportional to 3,354.21, 5,030.91 and 1,405.35

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Solution

The fourth proportional to 3,354.21, 5,030.91 and 1,405.35 is: 2,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.21 : 5,030.91 = 1,405.35 : x
  2. Step 2: Convert to fraction form
    3,354.21/5,030.91 = 1,405.35/x
  3. Step 3: Cross multiply
    3,354.21x = 5,030.91 × 1,405.35
  4. Step 4: Simplify right side
    3,354.21x = 7,070,189.37
  5. Step 5: Solve for x
    x = 7,070,189.37/3,354.21
  6. Step 6: Final answer
    x = 2,107.86

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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.