Home / 1,336.30-2,004.53-514.58

Finding the Fourth Proportional to 1,336.30, 2,004.53 and 514.58

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Solution

The fourth proportional to 1,336.30, 2,004.53 and 514.58 is: 771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.30 : 2,004.53 = 514.58 : x
  2. Step 2: Convert to fraction form
    1,336.30/2,004.53 = 514.58/x
  3. Step 3: Cross multiply
    1,336.30x = 2,004.53 × 514.58
  4. Step 4: Simplify right side
    1,336.30x = 1,031,489.15
  5. Step 5: Solve for x
    x = 1,031,489.15/1,336.30
  6. Step 6: Final answer
    x = 771.90

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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.