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Finding the Fourth Proportional to 3,218.75, 4,441.88 and 1,746.75

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Solution

The fourth proportional to 3,218.75, 4,441.88 and 1,746.75 is: 2,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.75 : 4,441.88 = 1,746.75 : x
  2. Step 2: Convert to fraction form
    3,218.75/4,441.88 = 1,746.75/x
  3. Step 3: Cross multiply
    3,218.75x = 4,441.88 × 1,746.75
  4. Step 4: Simplify right side
    3,218.75x = 7,758,853.89
  5. Step 5: Solve for x
    x = 7,758,853.89/3,218.75
  6. Step 6: Final answer
    x = 2,410.52

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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.