Home / 3,168.63-4,751.33-1,688.69

Finding the Fourth Proportional to 3,168.63, 4,751.33 and 1,688.69

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Solution

The fourth proportional to 3,168.63, 4,751.33 and 1,688.69 is: 2,532.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.63 : 4,751.33 = 1,688.69 : x
  2. Step 2: Convert to fraction form
    3,168.63/4,751.33 = 1,688.69/x
  3. Step 3: Cross multiply
    3,168.63x = 4,751.33 × 1,688.69
  4. Step 4: Simplify right side
    3,168.63x = 8,023,523.46
  5. Step 5: Solve for x
    x = 8,023,523.46/3,168.63
  6. Step 6: Final answer
    x = 2,532.17

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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.