Home / 3,746.45-5,172.64-2,489.96

Finding the Fourth Proportional to 3,746.45, 5,172.64 and 2,489.96

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Solution

The fourth proportional to 3,746.45, 5,172.64 and 2,489.96 is: 3,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.45 : 5,172.64 = 2,489.96 : x
  2. Step 2: Convert to fraction form
    3,746.45/5,172.64 = 2,489.96/x
  3. Step 3: Cross multiply
    3,746.45x = 5,172.64 × 2,489.96
  4. Step 4: Simplify right side
    3,746.45x = 12,879,673.40
  5. Step 5: Solve for x
    x = 12,879,673.40/3,746.45
  6. Step 6: Final answer
    x = 3,437.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.