Home / 3,464.48-4,780.79-1,972.39

Finding the Fourth Proportional to 3,464.48, 4,780.79 and 1,972.39

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Solution

The fourth proportional to 3,464.48, 4,780.79 and 1,972.39 is: 2,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,464.48 : 4,780.79 = 1,972.39 : x
  2. Step 2: Convert to fraction form
    3,464.48/4,780.79 = 1,972.39/x
  3. Step 3: Cross multiply
    3,464.48x = 4,780.79 × 1,972.39
  4. Step 4: Simplify right side
    3,464.48x = 9,429,558.48
  5. Step 5: Solve for x
    x = 9,429,558.48/3,464.48
  6. Step 6: Final answer
    x = 2,721.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.