Home / 5,915.86-8,164.29-3,431.86

Finding the Fourth Proportional to 5,915.86, 8,164.29 and 3,431.86

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Solution

The fourth proportional to 5,915.86, 8,164.29 and 3,431.86 is: 4,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.86 : 8,164.29 = 3,431.86 : x
  2. Step 2: Convert to fraction form
    5,915.86/8,164.29 = 3,431.86/x
  3. Step 3: Cross multiply
    5,915.86x = 8,164.29 × 3,431.86
  4. Step 4: Simplify right side
    5,915.86x = 28,018,700.28
  5. Step 5: Solve for x
    x = 28,018,700.28/5,915.86
  6. Step 6: Final answer
    x = 4,736.20

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1.5x scale

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.