Home / 2,001.60-2,761.20-1,338.48

Finding the Fourth Proportional to 2,001.60, 2,761.20 and 1,338.48

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Solution

The fourth proportional to 2,001.60, 2,761.20 and 1,338.48 is: 1,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.60 : 2,761.20 = 1,338.48 : x
  2. Step 2: Convert to fraction form
    2,001.60/2,761.20 = 1,338.48/x
  3. Step 3: Cross multiply
    2,001.60x = 2,761.20 × 1,338.48
  4. Step 4: Simplify right side
    2,001.60x = 3,695,810.98
  5. Step 5: Solve for x
    x = 3,695,810.98/2,001.60
  6. Step 6: Final answer
    x = 1,846.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.