Home / 1,336.12-2,004.98-752.36

Finding the Fourth Proportional to 1,336.12, 2,004.98 and 752.36

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Solution

The fourth proportional to 1,336.12, 2,004.98 and 752.36 is: 1,128.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.12 : 2,004.98 = 752.36 : x
  2. Step 2: Convert to fraction form
    1,336.12/2,004.98 = 752.36/x
  3. Step 3: Cross multiply
    1,336.12x = 2,004.98 × 752.36
  4. Step 4: Simplify right side
    1,336.12x = 1,508,466.75
  5. Step 5: Solve for x
    x = 1,508,466.75/1,336.12
  6. Step 6: Final answer
    x = 1,128.99

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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.