Home / 3,410.87-5,116.43-945.70

Finding the Fourth Proportional to 3,410.87, 5,116.43 and 945.70

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Solution

The fourth proportional to 3,410.87, 5,116.43 and 945.70 is: 1,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.87 : 5,116.43 = 945.70 : x
  2. Step 2: Convert to fraction form
    3,410.87/5,116.43 = 945.70/x
  3. Step 3: Cross multiply
    3,410.87x = 5,116.43 × 945.70
  4. Step 4: Simplify right side
    3,410.87x = 4,838,597.42
  5. Step 5: Solve for x
    x = 4,838,597.42/3,410.87
  6. Step 6: Final answer
    x = 1,418.58

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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.