Home / 4,172.22-5,763.12-3,378.51

Finding the Fourth Proportional to 4,172.22, 5,763.12 and 3,378.51

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Solution

The fourth proportional to 4,172.22, 5,763.12 and 3,378.51 is: 4,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.22 : 5,763.12 = 3,378.51 : x
  2. Step 2: Convert to fraction form
    4,172.22/5,763.12 = 3,378.51/x
  3. Step 3: Cross multiply
    4,172.22x = 5,763.12 × 3,378.51
  4. Step 4: Simplify right side
    4,172.22x = 19,470,758.55
  5. Step 5: Solve for x
    x = 19,470,758.55/4,172.22
  6. Step 6: Final answer
    x = 4,666.76

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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.