Home / 1,330.56-1,837.44-1,257.84

Finding the Fourth Proportional to 1,330.56, 1,837.44 and 1,257.84

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Solution

The fourth proportional to 1,330.56, 1,837.44 and 1,257.84 is: 1,737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.56 : 1,837.44 = 1,257.84 : x
  2. Step 2: Convert to fraction form
    1,330.56/1,837.44 = 1,257.84/x
  3. Step 3: Cross multiply
    1,330.56x = 1,837.44 × 1,257.84
  4. Step 4: Simplify right side
    1,330.56x = 2,311,205.53
  5. Step 5: Solve for x
    x = 2,311,205.53/1,330.56
  6. Step 6: Final answer
    x = 1,737.02

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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.