Home / 2,052.71-3,078.45-1,078.28

Finding the Fourth Proportional to 2,052.71, 3,078.45 and 1,078.28

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Solution

The fourth proportional to 2,052.71, 3,078.45 and 1,078.28 is: 1,617.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.71 : 3,078.45 = 1,078.28 : x
  2. Step 2: Convert to fraction form
    2,052.71/3,078.45 = 1,078.28/x
  3. Step 3: Cross multiply
    2,052.71x = 3,078.45 × 1,078.28
  4. Step 4: Simplify right side
    2,052.71x = 3,319,415.67
  5. Step 5: Solve for x
    x = 3,319,415.67/2,052.71
  6. Step 6: Final answer
    x = 1,617.09

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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.