Home / 7,890.08-11,835.08-3,212.62

Finding the Fourth Proportional to 7,890.08, 11,835.08 and 3,212.62

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Solution

The fourth proportional to 7,890.08, 11,835.08 and 3,212.62 is: 4,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.08 : 11,835.08 = 3,212.62 : x
  2. Step 2: Convert to fraction form
    7,890.08/11,835.08 = 3,212.62/x
  3. Step 3: Cross multiply
    7,890.08x = 11,835.08 × 3,212.62
  4. Step 4: Simplify right side
    7,890.08x = 38,021,614.71
  5. Step 5: Solve for x
    x = 38,021,614.71/7,890.08
  6. Step 6: Final answer
    x = 4,818.91

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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.