Home / 4,102.60-6,154.80-1,636.78

Finding the Fourth Proportional to 4,102.60, 6,154.80 and 1,636.78

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Solution

The fourth proportional to 4,102.60, 6,154.80 and 1,636.78 is: 2,455.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.60 : 6,154.80 = 1,636.78 : x
  2. Step 2: Convert to fraction form
    4,102.60/6,154.80 = 1,636.78/x
  3. Step 3: Cross multiply
    4,102.60x = 6,154.80 × 1,636.78
  4. Step 4: Simplify right side
    4,102.60x = 10,074,053.54
  5. Step 5: Solve for x
    x = 10,074,053.54/4,102.60
  6. Step 6: Final answer
    x = 2,455.53

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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.