Home / 6,345.78-9,519.58-1,963.58

Finding the Fourth Proportional to 6,345.78, 9,519.58 and 1,963.58

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Solution

The fourth proportional to 6,345.78, 9,519.58 and 1,963.58 is: 2,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.78 : 9,519.58 = 1,963.58 : x
  2. Step 2: Convert to fraction form
    6,345.78/9,519.58 = 1,963.58/x
  3. Step 3: Cross multiply
    6,345.78x = 9,519.58 × 1,963.58
  4. Step 4: Simplify right side
    6,345.78x = 18,692,456.90
  5. Step 5: Solve for x
    x = 18,692,456.90/6,345.78
  6. Step 6: Final answer
    x = 2,945.65

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1.5x scale

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.