Home / 7,688.86-11,533.08-2,141.98

Finding the Fourth Proportional to 7,688.86, 11,533.08 and 2,141.98

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Solution

The fourth proportional to 7,688.86, 11,533.08 and 2,141.98 is: 3,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.86 : 11,533.08 = 2,141.98 : x
  2. Step 2: Convert to fraction form
    7,688.86/11,533.08 = 2,141.98/x
  3. Step 3: Cross multiply
    7,688.86x = 11,533.08 × 2,141.98
  4. Step 4: Simplify right side
    7,688.86x = 24,703,626.70
  5. Step 5: Solve for x
    x = 24,703,626.70/7,688.86
  6. Step 6: Final answer
    x = 3,212.91

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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.