Home / 5,122.56-7,678.31-2,484.50

Finding the Fourth Proportional to 5,122.56, 7,678.31 and 2,484.50

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Solution

The fourth proportional to 5,122.56, 7,678.31 and 2,484.50 is: 3,724.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.56 : 7,678.31 = 2,484.50 : x
  2. Step 2: Convert to fraction form
    5,122.56/7,678.31 = 2,484.50/x
  3. Step 3: Cross multiply
    5,122.56x = 7,678.31 × 2,484.50
  4. Step 4: Simplify right side
    5,122.56x = 19,076,710.38
  5. Step 5: Solve for x
    x = 19,076,710.38/5,122.56
  6. Step 6: Final answer
    x = 3,724.06

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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.