Home / 1,336.42-2,001.90-1,276.30

Finding the Fourth Proportional to 1,336.42, 2,001.90 and 1,276.30

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Solution

The fourth proportional to 1,336.42, 2,001.90 and 1,276.30 is: 1,911.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.42 : 2,001.90 = 1,276.30 : x
  2. Step 2: Convert to fraction form
    1,336.42/2,001.90 = 1,276.30/x
  3. Step 3: Cross multiply
    1,336.42x = 2,001.90 × 1,276.30
  4. Step 4: Simplify right side
    1,336.42x = 2,555,024.97
  5. Step 5: Solve for x
    x = 2,555,024.97/1,336.42
  6. Step 6: Final answer
    x = 1,911.84

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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.