Home / 1,540.26-2,318.63-1,381.50

Finding the Fourth Proportional to 1,540.26, 2,318.63 and 1,381.50

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Solution

The fourth proportional to 1,540.26, 2,318.63 and 1,381.50 is: 2,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.26 : 2,318.63 = 1,381.50 : x
  2. Step 2: Convert to fraction form
    1,540.26/2,318.63 = 1,381.50/x
  3. Step 3: Cross multiply
    1,540.26x = 2,318.63 × 1,381.50
  4. Step 4: Simplify right side
    1,540.26x = 3,203,180.44
  5. Step 5: Solve for x
    x = 3,203,180.44/1,540.26
  6. Step 6: Final answer
    x = 2,079.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.