Home / 5,110.30-7,654.65-4,138.30

Finding the Fourth Proportional to 5,110.30, 7,654.65 and 4,138.30

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Solution

The fourth proportional to 5,110.30, 7,654.65 and 4,138.30 is: 6,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.30 : 7,654.65 = 4,138.30 : x
  2. Step 2: Convert to fraction form
    5,110.30/7,654.65 = 4,138.30/x
  3. Step 3: Cross multiply
    5,110.30x = 7,654.65 × 4,138.30
  4. Step 4: Simplify right side
    5,110.30x = 31,677,238.10
  5. Step 5: Solve for x
    x = 31,677,238.10/5,110.30
  6. Step 6: Final answer
    x = 6,198.70

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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.