Home / 4,172.32-5,757.92-2,309.28

Finding the Fourth Proportional to 4,172.32, 5,757.92 and 2,309.28

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Solution

The fourth proportional to 4,172.32, 5,757.92 and 2,309.28 is: 3,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.32 : 5,757.92 = 2,309.28 : x
  2. Step 2: Convert to fraction form
    4,172.32/5,757.92 = 2,309.28/x
  3. Step 3: Cross multiply
    4,172.32x = 5,757.92 × 2,309.28
  4. Step 4: Simplify right side
    4,172.32x = 13,296,649.50
  5. Step 5: Solve for x
    x = 13,296,649.50/4,172.32
  6. Step 6: Final answer
    x = 3,186.87

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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.