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Finding the Fourth Proportional to 3,166.52, 4,750.81 and 1,218.74

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Solution

The fourth proportional to 3,166.52, 4,750.81 and 1,218.74 is: 1,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.52 : 4,750.81 = 1,218.74 : x
  2. Step 2: Convert to fraction form
    3,166.52/4,750.81 = 1,218.74/x
  3. Step 3: Cross multiply
    3,166.52x = 4,750.81 × 1,218.74
  4. Step 4: Simplify right side
    3,166.52x = 5,789,975.38
  5. Step 5: Solve for x
    x = 5,789,975.38/3,166.52
  6. Step 6: Final answer
    x = 1,828.50

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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.