Home / 3,436.70-5,155.64-1,355.62

Finding the Fourth Proportional to 3,436.70, 5,155.64 and 1,355.62

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Solution

The fourth proportional to 3,436.70, 5,155.64 and 1,355.62 is: 2,033.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.70 : 5,155.64 = 1,355.62 : x
  2. Step 2: Convert to fraction form
    3,436.70/5,155.64 = 1,355.62/x
  3. Step 3: Cross multiply
    3,436.70x = 5,155.64 × 1,355.62
  4. Step 4: Simplify right side
    3,436.70x = 6,989,056.14
  5. Step 5: Solve for x
    x = 6,989,056.14/3,436.70
  6. Step 6: Final answer
    x = 2,033.65

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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.