Home / 3,647.96-5,465.28-1,911.32

Finding the Fourth Proportional to 3,647.96, 5,465.28 and 1,911.32

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Solution

The fourth proportional to 3,647.96, 5,465.28 and 1,911.32 is: 2,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.96 : 5,465.28 = 1,911.32 : x
  2. Step 2: Convert to fraction form
    3,647.96/5,465.28 = 1,911.32/x
  3. Step 3: Cross multiply
    3,647.96x = 5,465.28 × 1,911.32
  4. Step 4: Simplify right side
    3,647.96x = 10,445,898.97
  5. Step 5: Solve for x
    x = 10,445,898.97/3,647.96
  6. Step 6: Final answer
    x = 2,863.49

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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.