Home / 4,172.36-5,756.21-2,680.07

Finding the Fourth Proportional to 4,172.36, 5,756.21 and 2,680.07

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Solution

The fourth proportional to 4,172.36, 5,756.21 and 2,680.07 is: 3,697.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.36 : 5,756.21 = 2,680.07 : x
  2. Step 2: Convert to fraction form
    4,172.36/5,756.21 = 2,680.07/x
  3. Step 3: Cross multiply
    4,172.36x = 5,756.21 × 2,680.07
  4. Step 4: Simplify right side
    4,172.36x = 15,427,023.65
  5. Step 5: Solve for x
    x = 15,427,023.65/4,172.36
  6. Step 6: Final answer
    x = 3,697.44

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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.