Home / 2,485.18-3,728.09-841.29

Finding the Fourth Proportional to 2,485.18, 3,728.09 and 841.29

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Solution

The fourth proportional to 2,485.18, 3,728.09 and 841.29 is: 1,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.18 : 3,728.09 = 841.29 : x
  2. Step 2: Convert to fraction form
    2,485.18/3,728.09 = 841.29/x
  3. Step 3: Cross multiply
    2,485.18x = 3,728.09 × 841.29
  4. Step 4: Simplify right side
    2,485.18x = 3,136,392.96
  5. Step 5: Solve for x
    x = 3,136,392.96/2,485.18
  6. Step 6: Final answer
    x = 1,262.04

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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.