Home / 5,110.20-7,665.30-4,235.40

Finding the Fourth Proportional to 5,110.20, 7,665.30 and 4,235.40

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Solution

The fourth proportional to 5,110.20, 7,665.30 and 4,235.40 is: 6,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.20 : 7,665.30 = 4,235.40 : x
  2. Step 2: Convert to fraction form
    5,110.20/7,665.30 = 4,235.40/x
  3. Step 3: Cross multiply
    5,110.20x = 7,665.30 × 4,235.40
  4. Step 4: Simplify right side
    5,110.20x = 32,465,611.62
  5. Step 5: Solve for x
    x = 32,465,611.62/5,110.20
  6. Step 6: Final answer
    x = 6,353.10

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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.