Home / 4,785.31-7,178.82-1,972.58

Finding the Fourth Proportional to 4,785.31, 7,178.82 and 1,972.58

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Solution

The fourth proportional to 4,785.31, 7,178.82 and 1,972.58 is: 2,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.31 : 7,178.82 = 1,972.58 : x
  2. Step 2: Convert to fraction form
    4,785.31/7,178.82 = 1,972.58/x
  3. Step 3: Cross multiply
    4,785.31x = 7,178.82 × 1,972.58
  4. Step 4: Simplify right side
    4,785.31x = 14,160,795.18
  5. Step 5: Solve for x
    x = 14,160,795.18/4,785.31
  6. Step 6: Final answer
    x = 2,959.22

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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.