Home / 3,128.39-4,688.48-2,302.79

Finding the Fourth Proportional to 3,128.39, 4,688.48 and 2,302.79

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Solution

The fourth proportional to 3,128.39, 4,688.48 and 2,302.79 is: 3,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.39 : 4,688.48 = 2,302.79 : x
  2. Step 2: Convert to fraction form
    3,128.39/4,688.48 = 2,302.79/x
  3. Step 3: Cross multiply
    3,128.39x = 4,688.48 × 2,302.79
  4. Step 4: Simplify right side
    3,128.39x = 10,796,584.86
  5. Step 5: Solve for x
    x = 10,796,584.86/3,128.39
  6. Step 6: Final answer
    x = 3,451.16

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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.