Home / 1,372.31-2,058.21-371.67

Finding the Fourth Proportional to 1,372.31, 2,058.21 and 371.67

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Solution

The fourth proportional to 1,372.31, 2,058.21 and 371.67 is: 557.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.31 : 2,058.21 = 371.67 : x
  2. Step 2: Convert to fraction form
    1,372.31/2,058.21 = 371.67/x
  3. Step 3: Cross multiply
    1,372.31x = 2,058.21 × 371.67
  4. Step 4: Simplify right side
    1,372.31x = 764,980.06
  5. Step 5: Solve for x
    x = 764,980.06/1,372.31
  6. Step 6: Final answer
    x = 557.44

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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.