Home / 7,835.30-11,758.79-3,155.36

Finding the Fourth Proportional to 7,835.30, 11,758.79 and 3,155.36

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Solution

The fourth proportional to 7,835.30, 11,758.79 and 3,155.36 is: 4,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.30 : 11,758.79 = 3,155.36 : x
  2. Step 2: Convert to fraction form
    7,835.30/11,758.79 = 3,155.36/x
  3. Step 3: Cross multiply
    7,835.30x = 11,758.79 × 3,155.36
  4. Step 4: Simplify right side
    7,835.30x = 37,103,215.61
  5. Step 5: Solve for x
    x = 37,103,215.61/7,835.30
  6. Step 6: Final answer
    x = 4,735.39

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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.