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Finding the Fourth Proportional to 6,275.25, 8,660.25 and 3,480.75

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Solution

The fourth proportional to 6,275.25, 8,660.25 and 3,480.75 is: 4,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275.25 : 8,660.25 = 3,480.75 : x
  2. Step 2: Convert to fraction form
    6,275.25/8,660.25 = 3,480.75/x
  3. Step 3: Cross multiply
    6,275.25x = 8,660.25 × 3,480.75
  4. Step 4: Simplify right side
    6,275.25x = 30,144,165.19
  5. Step 5: Solve for x
    x = 30,144,165.19/6,275.25
  6. Step 6: Final answer
    x = 4,803.66

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Half scale
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Double scale
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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.