Home / 3,455.30-4,768.70-1,963.58

Finding the Fourth Proportional to 3,455.30, 4,768.70 and 1,963.58

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Solution

The fourth proportional to 3,455.30, 4,768.70 and 1,963.58 is: 2,709.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.30 : 4,768.70 = 1,963.58 : x
  2. Step 2: Convert to fraction form
    3,455.30/4,768.70 = 1,963.58/x
  3. Step 3: Cross multiply
    3,455.30x = 4,768.70 × 1,963.58
  4. Step 4: Simplify right side
    3,455.30x = 9,363,726.05
  5. Step 5: Solve for x
    x = 9,363,726.05/3,455.30
  6. Step 6: Final answer
    x = 2,709.96

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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.