Home / 3,419.57-5,131.85-3,215.45

Finding the Fourth Proportional to 3,419.57, 5,131.85 and 3,215.45

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Solution

The fourth proportional to 3,419.57, 5,131.85 and 3,215.45 is: 4,825.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.57 : 5,131.85 = 3,215.45 : x
  2. Step 2: Convert to fraction form
    3,419.57/5,131.85 = 3,215.45/x
  3. Step 3: Cross multiply
    3,419.57x = 5,131.85 × 3,215.45
  4. Step 4: Simplify right side
    3,419.57x = 16,501,165.35
  5. Step 5: Solve for x
    x = 16,501,165.35/3,419.57
  6. Step 6: Final answer
    x = 4,825.52

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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.