Home / 4,261.10-6,389.04-1,661

Finding the Fourth Proportional to 4,261.10, 6,389.04 and 1,661

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Solution

The fourth proportional to 4,261.10, 6,389.04 and 1,661 is: 2,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.10 : 6,389.04 = 1,661 : x
  2. Step 2: Convert to fraction form
    4,261.10/6,389.04 = 1,661/x
  3. Step 3: Cross multiply
    4,261.10x = 6,389.04 × 1,661
  4. Step 4: Simplify right side
    4,261.10x = 10,612,195.44
  5. Step 5: Solve for x
    x = 10,612,195.44/4,261.10
  6. Step 6: Final answer
    x = 2,490.48

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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.