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Finding the Fourth Proportional to 6,648.60, 9,955.07 and 3,718.56

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Solution

The fourth proportional to 6,648.60, 9,955.07 and 3,718.56 is: 5,567.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.60 : 9,955.07 = 3,718.56 : x
  2. Step 2: Convert to fraction form
    6,648.60/9,955.07 = 3,718.56/x
  3. Step 3: Cross multiply
    6,648.60x = 9,955.07 × 3,718.56
  4. Step 4: Simplify right side
    6,648.60x = 37,018,525.10
  5. Step 5: Solve for x
    x = 37,018,525.10/6,648.60
  6. Step 6: Final answer
    x = 5,567.87

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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.