Home / 4,178.22-5,763.18-2,688.02

Finding the Fourth Proportional to 4,178.22, 5,763.18 and 2,688.02

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Solution

The fourth proportional to 4,178.22, 5,763.18 and 2,688.02 is: 3,707.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.22 : 5,763.18 = 2,688.02 : x
  2. Step 2: Convert to fraction form
    4,178.22/5,763.18 = 2,688.02/x
  3. Step 3: Cross multiply
    4,178.22x = 5,763.18 × 2,688.02
  4. Step 4: Simplify right side
    4,178.22x = 15,491,543.10
  5. Step 5: Solve for x
    x = 15,491,543.10/4,178.22
  6. Step 6: Final answer
    x = 3,707.69

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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.