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Finding the Fourth Proportional to 6,160.40, 9,246.40 and 3,240.80

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Solution

The fourth proportional to 6,160.40, 9,246.40 and 3,240.80 is: 4,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,160.40 : 9,246.40 = 3,240.80 : x
  2. Step 2: Convert to fraction form
    6,160.40/9,246.40 = 3,240.80/x
  3. Step 3: Cross multiply
    6,160.40x = 9,246.40 × 3,240.80
  4. Step 4: Simplify right side
    6,160.40x = 29,965,733.12
  5. Step 5: Solve for x
    x = 29,965,733.12/6,160.40
  6. Step 6: Final answer
    x = 4,864.25

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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.