Home / 1,542.40-2,313.96-446.79

Finding the Fourth Proportional to 1,542.40, 2,313.96 and 446.79

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Solution

The fourth proportional to 1,542.40, 2,313.96 and 446.79 is: 670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.40 : 2,313.96 = 446.79 : x
  2. Step 2: Convert to fraction form
    1,542.40/2,313.96 = 446.79/x
  3. Step 3: Cross multiply
    1,542.40x = 2,313.96 × 446.79
  4. Step 4: Simplify right side
    1,542.40x = 1,033,842.62
  5. Step 5: Solve for x
    x = 1,033,842.62/1,542.40
  6. Step 6: Final answer
    x = 670.28

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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.