Home / 3,315.19-4,972.78-1,853.54

Finding the Fourth Proportional to 3,315.19, 4,972.78 and 1,853.54

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Solution

The fourth proportional to 3,315.19, 4,972.78 and 1,853.54 is: 2,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.19 : 4,972.78 = 1,853.54 : x
  2. Step 2: Convert to fraction form
    3,315.19/4,972.78 = 1,853.54/x
  3. Step 3: Cross multiply
    3,315.19x = 4,972.78 × 1,853.54
  4. Step 4: Simplify right side
    3,315.19x = 9,217,246.64
  5. Step 5: Solve for x
    x = 9,217,246.64/3,315.19
  6. Step 6: Final answer
    x = 2,780.31

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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.