Home / 1,318.52-1,971.96-1,173.30

Finding the Fourth Proportional to 1,318.52, 1,971.96 and 1,173.30

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Solution

The fourth proportional to 1,318.52, 1,971.96 and 1,173.30 is: 1,754.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.52 : 1,971.96 = 1,173.30 : x
  2. Step 2: Convert to fraction form
    1,318.52/1,971.96 = 1,173.30/x
  3. Step 3: Cross multiply
    1,318.52x = 1,971.96 × 1,173.30
  4. Step 4: Simplify right side
    1,318.52x = 2,313,688.87
  5. Step 5: Solve for x
    x = 2,313,688.87/1,318.52
  6. Step 6: Final answer
    x = 1,754.76

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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.