Home / 5,121.26-7,064.83-3,445.12

Finding the Fourth Proportional to 5,121.26, 7,064.83 and 3,445.12

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Solution

The fourth proportional to 5,121.26, 7,064.83 and 3,445.12 is: 4,752.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.26 : 7,064.83 = 3,445.12 : x
  2. Step 2: Convert to fraction form
    5,121.26/7,064.83 = 3,445.12/x
  3. Step 3: Cross multiply
    5,121.26x = 7,064.83 × 3,445.12
  4. Step 4: Simplify right side
    5,121.26x = 24,339,187.13
  5. Step 5: Solve for x
    x = 24,339,187.13/5,121.26
  6. Step 6: Final answer
    x = 4,752.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.