Home / 2,951.49-4,428.29-1,392.68

Finding the Fourth Proportional to 2,951.49, 4,428.29 and 1,392.68

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Solution

The fourth proportional to 2,951.49, 4,428.29 and 1,392.68 is: 2,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.49 : 4,428.29 = 1,392.68 : x
  2. Step 2: Convert to fraction form
    2,951.49/4,428.29 = 1,392.68/x
  3. Step 3: Cross multiply
    2,951.49x = 4,428.29 × 1,392.68
  4. Step 4: Simplify right side
    2,951.49x = 6,167,190.92
  5. Step 5: Solve for x
    x = 6,167,190.92/2,951.49
  6. Step 6: Final answer
    x = 2,089.52

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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.