Home / 5,121.99-7,037.70-4,072.23

Finding the Fourth Proportional to 5,121.99, 7,037.70 and 4,072.23

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Solution

The fourth proportional to 5,121.99, 7,037.70 and 4,072.23 is: 5,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.99 : 7,037.70 = 4,072.23 : x
  2. Step 2: Convert to fraction form
    5,121.99/7,037.70 = 4,072.23/x
  3. Step 3: Cross multiply
    5,121.99x = 7,037.70 × 4,072.23
  4. Step 4: Simplify right side
    5,121.99x = 28,659,133.07
  5. Step 5: Solve for x
    x = 28,659,133.07/5,121.99
  6. Step 6: Final answer
    x = 5,595.31

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.