Home / 7,984.78-11,984.54-4,038.82

Finding the Fourth Proportional to 7,984.78, 11,984.54 and 4,038.82

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Solution

The fourth proportional to 7,984.78, 11,984.54 and 4,038.82 is: 6,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.78 : 11,984.54 = 4,038.82 : x
  2. Step 2: Convert to fraction form
    7,984.78/11,984.54 = 4,038.82/x
  3. Step 3: Cross multiply
    7,984.78x = 11,984.54 × 4,038.82
  4. Step 4: Simplify right side
    7,984.78x = 48,403,399.84
  5. Step 5: Solve for x
    x = 48,403,399.84/7,984.78
  6. Step 6: Final answer
    x = 6,061.96

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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.