Home / 1,313.26-1,968.54-446.92

Finding the Fourth Proportional to 1,313.26, 1,968.54 and 446.92

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Solution

The fourth proportional to 1,313.26, 1,968.54 and 446.92 is: 669.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.26 : 1,968.54 = 446.92 : x
  2. Step 2: Convert to fraction form
    1,313.26/1,968.54 = 446.92/x
  3. Step 3: Cross multiply
    1,313.26x = 1,968.54 × 446.92
  4. Step 4: Simplify right side
    1,313.26x = 879,779.90
  5. Step 5: Solve for x
    x = 879,779.90/1,313.26
  6. Step 6: Final answer
    x = 669.92

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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.