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Finding the Fourth Proportional to 6,278.76, 8,664.51 and 3,446.19

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Solution

The fourth proportional to 6,278.76, 8,664.51 and 3,446.19 is: 4,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.76 : 8,664.51 = 3,446.19 : x
  2. Step 2: Convert to fraction form
    6,278.76/8,664.51 = 3,446.19/x
  3. Step 3: Cross multiply
    6,278.76x = 8,664.51 × 3,446.19
  4. Step 4: Simplify right side
    6,278.76x = 29,859,547.72
  5. Step 5: Solve for x
    x = 29,859,547.72/6,278.76
  6. Step 6: Final answer
    x = 4,755.64

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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.