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Finding the Fourth Proportional to 3,056.51, 4,584.20 and 865.17

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Solution

The fourth proportional to 3,056.51, 4,584.20 and 865.17 is: 1,297.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.51 : 4,584.20 = 865.17 : x
  2. Step 2: Convert to fraction form
    3,056.51/4,584.20 = 865.17/x
  3. Step 3: Cross multiply
    3,056.51x = 4,584.20 × 865.17
  4. Step 4: Simplify right side
    3,056.51x = 3,966,107.99
  5. Step 5: Solve for x
    x = 3,966,107.99/3,056.51
  6. Step 6: Final answer
    x = 1,297.59

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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.