Home / 2,636.70-3,955.20-1,175.86

Finding the Fourth Proportional to 2,636.70, 3,955.20 and 1,175.86

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Solution

The fourth proportional to 2,636.70, 3,955.20 and 1,175.86 is: 1,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.70 : 3,955.20 = 1,175.86 : x
  2. Step 2: Convert to fraction form
    2,636.70/3,955.20 = 1,175.86/x
  3. Step 3: Cross multiply
    2,636.70x = 3,955.20 × 1,175.86
  4. Step 4: Simplify right side
    2,636.70x = 4,650,761.47
  5. Step 5: Solve for x
    x = 4,650,761.47/2,636.70
  6. Step 6: Final answer
    x = 1,763.86

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1.5x scale

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.