Home / 5,915.63-8,164.45-3,898.73

Finding the Fourth Proportional to 5,915.63, 8,164.45 and 3,898.73

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Solution

The fourth proportional to 5,915.63, 8,164.45 and 3,898.73 is: 5,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.63 : 8,164.45 = 3,898.73 : x
  2. Step 2: Convert to fraction form
    5,915.63/8,164.45 = 3,898.73/x
  3. Step 3: Cross multiply
    5,915.63x = 8,164.45 × 3,898.73
  4. Step 4: Simplify right side
    5,915.63x = 31,830,989.50
  5. Step 5: Solve for x
    x = 31,830,989.50/5,915.63
  6. Step 6: Final answer
    x = 5,380.83

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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.