Home / 1,242.34-1,712.30-1,183.96

Finding the Fourth Proportional to 1,242.34, 1,712.30 and 1,183.96

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Solution

The fourth proportional to 1,242.34, 1,712.30 and 1,183.96 is: 1,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242.34 : 1,712.30 = 1,183.96 : x
  2. Step 2: Convert to fraction form
    1,242.34/1,712.30 = 1,183.96/x
  3. Step 3: Cross multiply
    1,242.34x = 1,712.30 × 1,183.96
  4. Step 4: Simplify right side
    1,242.34x = 2,027,294.71
  5. Step 5: Solve for x
    x = 2,027,294.71/1,242.34
  6. Step 6: Final answer
    x = 1,631.84

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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.