Home / 3,915.64-5,402.46-2,588.86

Finding the Fourth Proportional to 3,915.64, 5,402.46 and 2,588.86

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Solution

The fourth proportional to 3,915.64, 5,402.46 and 2,588.86 is: 3,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.64 : 5,402.46 = 2,588.86 : x
  2. Step 2: Convert to fraction form
    3,915.64/5,402.46 = 2,588.86/x
  3. Step 3: Cross multiply
    3,915.64x = 5,402.46 × 2,588.86
  4. Step 4: Simplify right side
    3,915.64x = 13,986,212.60
  5. Step 5: Solve for x
    x = 13,986,212.60/3,915.64
  6. Step 6: Final answer
    x = 3,571.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.