Home / 3,621.92-5,429.10-1,675.40

Finding the Fourth Proportional to 3,621.92, 5,429.10 and 1,675.40

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Solution

The fourth proportional to 3,621.92, 5,429.10 and 1,675.40 is: 2,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.92 : 5,429.10 = 1,675.40 : x
  2. Step 2: Convert to fraction form
    3,621.92/5,429.10 = 1,675.40/x
  3. Step 3: Cross multiply
    3,621.92x = 5,429.10 × 1,675.40
  4. Step 4: Simplify right side
    3,621.92x = 9,095,914.14
  5. Step 5: Solve for x
    x = 9,095,914.14/3,621.92
  6. Step 6: Final answer
    x = 2,511.35

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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.