Home / 5,411.56-8,110.32-2,947

Finding the Fourth Proportional to 5,411.56, 8,110.32 and 2,947

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Solution

The fourth proportional to 5,411.56, 8,110.32 and 2,947 is: 4,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.56 : 8,110.32 = 2,947 : x
  2. Step 2: Convert to fraction form
    5,411.56/8,110.32 = 2,947/x
  3. Step 3: Cross multiply
    5,411.56x = 8,110.32 × 2,947
  4. Step 4: Simplify right side
    5,411.56x = 23,901,113.04
  5. Step 5: Solve for x
    x = 23,901,113.04/5,411.56
  6. Step 6: Final answer
    x = 4,416.68

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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.