Home / 7,890.10-11,835.78-2,624.92

Finding the Fourth Proportional to 7,890.10, 11,835.78 and 2,624.92

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Solution

The fourth proportional to 7,890.10, 11,835.78 and 2,624.92 is: 3,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.10 : 11,835.78 = 2,624.92 : x
  2. Step 2: Convert to fraction form
    7,890.10/11,835.78 = 2,624.92/x
  3. Step 3: Cross multiply
    7,890.10x = 11,835.78 × 2,624.92
  4. Step 4: Simplify right side
    7,890.10x = 31,067,936.20
  5. Step 5: Solve for x
    x = 31,067,936.20/7,890.10
  6. Step 6: Final answer
    x = 3,937.59

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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.