Home / 1,940.40-2,678.58-1,154.52

Finding the Fourth Proportional to 1,940.40, 2,678.58 and 1,154.52

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Solution

The fourth proportional to 1,940.40, 2,678.58 and 1,154.52 is: 1,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.40 : 2,678.58 = 1,154.52 : x
  2. Step 2: Convert to fraction form
    1,940.40/2,678.58 = 1,154.52/x
  3. Step 3: Cross multiply
    1,940.40x = 2,678.58 × 1,154.52
  4. Step 4: Simplify right side
    1,940.40x = 3,092,474.18
  5. Step 5: Solve for x
    x = 3,092,474.18/1,940.40
  6. Step 6: Final answer
    x = 1,593.73

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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.