Home / 6,643.20-9,963.56-2,945.54

Finding the Fourth Proportional to 6,643.20, 9,963.56 and 2,945.54

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Solution

The fourth proportional to 6,643.20, 9,963.56 and 2,945.54 is: 4,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.20 : 9,963.56 = 2,945.54 : x
  2. Step 2: Convert to fraction form
    6,643.20/9,963.56 = 2,945.54/x
  3. Step 3: Cross multiply
    6,643.20x = 9,963.56 × 2,945.54
  4. Step 4: Simplify right side
    6,643.20x = 29,348,064.52
  5. Step 5: Solve for x
    x = 29,348,064.52/6,643.20
  6. Step 6: Final answer
    x = 4,417.76

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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.