Home / 1,956.14-2,934.26-915.89

Finding the Fourth Proportional to 1,956.14, 2,934.26 and 915.89

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Solution

The fourth proportional to 1,956.14, 2,934.26 and 915.89 is: 1,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.14 : 2,934.26 = 915.89 : x
  2. Step 2: Convert to fraction form
    1,956.14/2,934.26 = 915.89/x
  3. Step 3: Cross multiply
    1,956.14x = 2,934.26 × 915.89
  4. Step 4: Simplify right side
    1,956.14x = 2,687,440.14
  5. Step 5: Solve for x
    x = 2,687,440.14/1,956.14
  6. Step 6: Final answer
    x = 1,373.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.