Home / 3,606.30-5,408.64-3,430.80

Finding the Fourth Proportional to 3,606.30, 5,408.64 and 3,430.80

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Solution

The fourth proportional to 3,606.30, 5,408.64 and 3,430.80 is: 5,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.30 : 5,408.64 = 3,430.80 : x
  2. Step 2: Convert to fraction form
    3,606.30/5,408.64 = 3,430.80/x
  3. Step 3: Cross multiply
    3,606.30x = 5,408.64 × 3,430.80
  4. Step 4: Simplify right side
    3,606.30x = 18,555,962.11
  5. Step 5: Solve for x
    x = 18,555,962.11/3,606.30
  6. Step 6: Final answer
    x = 5,145.43

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1.5x scale

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.