Home / 7,313.10-10,971.30-3,415.38

Finding the Fourth Proportional to 7,313.10, 10,971.30 and 3,415.38

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Solution

The fourth proportional to 7,313.10, 10,971.30 and 3,415.38 is: 5,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.10 : 10,971.30 = 3,415.38 : x
  2. Step 2: Convert to fraction form
    7,313.10/10,971.30 = 3,415.38/x
  3. Step 3: Cross multiply
    7,313.10x = 10,971.30 × 3,415.38
  4. Step 4: Simplify right side
    7,313.10x = 37,471,158.59
  5. Step 5: Solve for x
    x = 37,471,158.59/7,313.10
  6. Step 6: Final answer
    x = 5,123.84

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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.