Home / 1,336.13-2,004.98-515.06

Finding the Fourth Proportional to 1,336.13, 2,004.98 and 515.06

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Solution

The fourth proportional to 1,336.13, 2,004.98 and 515.06 is: 772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.13 : 2,004.98 = 515.06 : x
  2. Step 2: Convert to fraction form
    1,336.13/2,004.98 = 515.06/x
  3. Step 3: Cross multiply
    1,336.13x = 2,004.98 × 515.06
  4. Step 4: Simplify right side
    1,336.13x = 1,032,687.44
  5. Step 5: Solve for x
    x = 1,032,687.44/1,336.13
  6. Step 6: Final answer
    x = 772.89

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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.