Home / 3,465.45-5,198.99-1,125.45

Finding the Fourth Proportional to 3,465.45, 5,198.99 and 1,125.45

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Solution

The fourth proportional to 3,465.45, 5,198.99 and 1,125.45 is: 1,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.45 : 5,198.99 = 1,125.45 : x
  2. Step 2: Convert to fraction form
    3,465.45/5,198.99 = 1,125.45/x
  3. Step 3: Cross multiply
    3,465.45x = 5,198.99 × 1,125.45
  4. Step 4: Simplify right side
    3,465.45x = 5,851,174.49
  5. Step 5: Solve for x
    x = 5,851,174.49/3,465.45
  6. Step 6: Final answer
    x = 1,688.43

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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.