Home / 5,178.56-7,147.34-3,053.96

Finding the Fourth Proportional to 5,178.56, 7,147.34 and 3,053.96

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Solution

The fourth proportional to 5,178.56, 7,147.34 and 3,053.96 is: 4,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.56 : 7,147.34 = 3,053.96 : x
  2. Step 2: Convert to fraction form
    5,178.56/7,147.34 = 3,053.96/x
  3. Step 3: Cross multiply
    5,178.56x = 7,147.34 × 3,053.96
  4. Step 4: Simplify right side
    5,178.56x = 21,827,715.97
  5. Step 5: Solve for x
    x = 21,827,715.97/5,178.56
  6. Step 6: Final answer
    x = 4,215.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.