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Finding the Fourth Proportional to 3,207, 4,424.58 and 1,880.76

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Solution

The fourth proportional to 3,207, 4,424.58 and 1,880.76 is: 2,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207 : 4,424.58 = 1,880.76 : x
  2. Step 2: Convert to fraction form
    3,207/4,424.58 = 1,880.76/x
  3. Step 3: Cross multiply
    3,207x = 4,424.58 × 1,880.76
  4. Step 4: Simplify right side
    3,207x = 8,321,573.08
  5. Step 5: Solve for x
    x = 8,321,573.08/3,207
  6. Step 6: Final answer
    x = 2,594.82

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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.