Home / 1,394.47-2,079.39-1,381.96

Finding the Fourth Proportional to 1,394.47, 2,079.39 and 1,381.96

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Solution

The fourth proportional to 1,394.47, 2,079.39 and 1,381.96 is: 2,060.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.47 : 2,079.39 = 1,381.96 : x
  2. Step 2: Convert to fraction form
    1,394.47/2,079.39 = 1,381.96/x
  3. Step 3: Cross multiply
    1,394.47x = 2,079.39 × 1,381.96
  4. Step 4: Simplify right side
    1,394.47x = 2,873,633.81
  5. Step 5: Solve for x
    x = 2,873,633.81/1,394.47
  6. Step 6: Final answer
    x = 2,060.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.