Home / 5,135.40-7,695.81-3,835.35

Finding the Fourth Proportional to 5,135.40, 7,695.81 and 3,835.35

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Solution

The fourth proportional to 5,135.40, 7,695.81 and 3,835.35 is: 5,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.40 : 7,695.81 = 3,835.35 : x
  2. Step 2: Convert to fraction form
    5,135.40/7,695.81 = 3,835.35/x
  3. Step 3: Cross multiply
    5,135.40x = 7,695.81 × 3,835.35
  4. Step 4: Simplify right side
    5,135.40x = 29,516,124.88
  5. Step 5: Solve for x
    x = 29,516,124.88/5,135.40
  6. Step 6: Final answer
    x = 5,747.58

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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.