Home / 5,540.90-8,311.35-5,087.30

Finding the Fourth Proportional to 5,540.90, 8,311.35 and 5,087.30

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Solution

The fourth proportional to 5,540.90, 8,311.35 and 5,087.30 is: 7,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.90 : 8,311.35 = 5,087.30 : x
  2. Step 2: Convert to fraction form
    5,540.90/8,311.35 = 5,087.30/x
  3. Step 3: Cross multiply
    5,540.90x = 8,311.35 × 5,087.30
  4. Step 4: Simplify right side
    5,540.90x = 42,282,330.86
  5. Step 5: Solve for x
    x = 42,282,330.86/5,540.90
  6. Step 6: Final answer
    x = 7,630.95

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1.5x scale

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.