Home / 1,336.25-2,004.38-847.82

Finding the Fourth Proportional to 1,336.25, 2,004.38 and 847.82

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Solution

The fourth proportional to 1,336.25, 2,004.38 and 847.82 is: 1,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.25 : 2,004.38 = 847.82 : x
  2. Step 2: Convert to fraction form
    1,336.25/2,004.38 = 847.82/x
  3. Step 3: Cross multiply
    1,336.25x = 2,004.38 × 847.82
  4. Step 4: Simplify right side
    1,336.25x = 1,699,360.58
  5. Step 5: Solve for x
    x = 1,699,360.58/1,336.25
  6. Step 6: Final answer
    x = 1,271.74

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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.