Home / 1,333.45-1,837.92-1,278.73

Finding the Fourth Proportional to 1,333.45, 1,837.92 and 1,278.73

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Solution

The fourth proportional to 1,333.45, 1,837.92 and 1,278.73 is: 1,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333.45 : 1,837.92 = 1,278.73 : x
  2. Step 2: Convert to fraction form
    1,333.45/1,837.92 = 1,278.73/x
  3. Step 3: Cross multiply
    1,333.45x = 1,837.92 × 1,278.73
  4. Step 4: Simplify right side
    1,333.45x = 2,350,203.44
  5. Step 5: Solve for x
    x = 2,350,203.44/1,333.45
  6. Step 6: Final answer
    x = 1,762.50

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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.