Home / 3,621.57-5,433.04-1,430.32

Finding the Fourth Proportional to 3,621.57, 5,433.04 and 1,430.32

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Solution

The fourth proportional to 3,621.57, 5,433.04 and 1,430.32 is: 2,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.57 : 5,433.04 = 1,430.32 : x
  2. Step 2: Convert to fraction form
    3,621.57/5,433.04 = 1,430.32/x
  3. Step 3: Cross multiply
    3,621.57x = 5,433.04 × 1,430.32
  4. Step 4: Simplify right side
    3,621.57x = 7,770,985.77
  5. Step 5: Solve for x
    x = 7,770,985.77/3,621.57
  6. Step 6: Final answer
    x = 2,145.75

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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.