Home / 3,168.38-4,750.95-1,688.44

Finding the Fourth Proportional to 3,168.38, 4,750.95 and 1,688.44

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Solution

The fourth proportional to 3,168.38, 4,750.95 and 1,688.44 is: 2,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.38 : 4,750.95 = 1,688.44 : x
  2. Step 2: Convert to fraction form
    3,168.38/4,750.95 = 1,688.44/x
  3. Step 3: Cross multiply
    3,168.38x = 4,750.95 × 1,688.44
  4. Step 4: Simplify right side
    3,168.38x = 8,021,682.14
  5. Step 5: Solve for x
    x = 8,021,682.14/3,168.38
  6. Step 6: Final answer
    x = 2,531.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.