Home / 7,783.14-11,669.55-3,620.89

Finding the Fourth Proportional to 7,783.14, 11,669.55 and 3,620.89

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Solution

The fourth proportional to 7,783.14, 11,669.55 and 3,620.89 is: 5,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.14 : 11,669.55 = 3,620.89 : x
  2. Step 2: Convert to fraction form
    7,783.14/11,669.55 = 3,620.89/x
  3. Step 3: Cross multiply
    7,783.14x = 11,669.55 × 3,620.89
  4. Step 4: Simplify right side
    7,783.14x = 42,254,156.90
  5. Step 5: Solve for x
    x = 42,254,156.90/7,783.14
  6. Step 6: Final answer
    x = 5,428.93

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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.