Home / 4,425.51-6,638.27-1,138.61

Finding the Fourth Proportional to 4,425.51, 6,638.27 and 1,138.61

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Solution

The fourth proportional to 4,425.51, 6,638.27 and 1,138.61 is: 1,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.51 : 6,638.27 = 1,138.61 : x
  2. Step 2: Convert to fraction form
    4,425.51/6,638.27 = 1,138.61/x
  3. Step 3: Cross multiply
    4,425.51x = 6,638.27 × 1,138.61
  4. Step 4: Simplify right side
    4,425.51x = 7,558,400.60
  5. Step 5: Solve for x
    x = 7,558,400.60/4,425.51
  6. Step 6: Final answer
    x = 1,707.92

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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.