Home / 1,954.35-2,693.10-1,393.83

Finding the Fourth Proportional to 1,954.35, 2,693.10 and 1,393.83

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Solution

The fourth proportional to 1,954.35, 2,693.10 and 1,393.83 is: 1,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.35 : 2,693.10 = 1,393.83 : x
  2. Step 2: Convert to fraction form
    1,954.35/2,693.10 = 1,393.83/x
  3. Step 3: Cross multiply
    1,954.35x = 2,693.10 × 1,393.83
  4. Step 4: Simplify right side
    1,954.35x = 3,753,710.11
  5. Step 5: Solve for x
    x = 3,753,710.11/1,954.35
  6. Step 6: Final answer
    x = 1,920.70

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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.