Home / 2,373.07-3,274.79-1,378.90

Finding the Fourth Proportional to 2,373.07, 3,274.79 and 1,378.90

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Solution

The fourth proportional to 2,373.07, 3,274.79 and 1,378.90 is: 1,902.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,373.07 : 3,274.79 = 1,378.90 : x
  2. Step 2: Convert to fraction form
    2,373.07/3,274.79 = 1,378.90/x
  3. Step 3: Cross multiply
    2,373.07x = 3,274.79 × 1,378.90
  4. Step 4: Simplify right side
    2,373.07x = 4,515,607.93
  5. Step 5: Solve for x
    x = 4,515,607.93/2,373.07
  6. Step 6: Final answer
    x = 1,902.86

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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.