Home / 3,918.45-5,876.13-1,725.63

Finding the Fourth Proportional to 3,918.45, 5,876.13 and 1,725.63

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Solution

The fourth proportional to 3,918.45, 5,876.13 and 1,725.63 is: 2,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.45 : 5,876.13 = 1,725.63 : x
  2. Step 2: Convert to fraction form
    3,918.45/5,876.13 = 1,725.63/x
  3. Step 3: Cross multiply
    3,918.45x = 5,876.13 × 1,725.63
  4. Step 4: Simplify right side
    3,918.45x = 10,140,026.21
  5. Step 5: Solve for x
    x = 10,140,026.21/3,918.45
  6. Step 6: Final answer
    x = 2,587.76

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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.