Home / 3,047.08-4,205.22-1,721.03

Finding the Fourth Proportional to 3,047.08, 4,205.22 and 1,721.03

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Solution

The fourth proportional to 3,047.08, 4,205.22 and 1,721.03 is: 2,375.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.08 : 4,205.22 = 1,721.03 : x
  2. Step 2: Convert to fraction form
    3,047.08/4,205.22 = 1,721.03/x
  3. Step 3: Cross multiply
    3,047.08x = 4,205.22 × 1,721.03
  4. Step 4: Simplify right side
    3,047.08x = 7,237,288.75
  5. Step 5: Solve for x
    x = 7,237,288.75/3,047.08
  6. Step 6: Final answer
    x = 2,375.16

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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.