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Finding the Fourth Proportional to 3,168.54, 4,750.79 and 1,521.81

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Solution

The fourth proportional to 3,168.54, 4,750.79 and 1,521.81 is: 2,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.54 : 4,750.79 = 1,521.81 : x
  2. Step 2: Convert to fraction form
    3,168.54/4,750.79 = 1,521.81/x
  3. Step 3: Cross multiply
    3,168.54x = 4,750.79 × 1,521.81
  4. Step 4: Simplify right side
    3,168.54x = 7,229,792.12
  5. Step 5: Solve for x
    x = 7,229,792.12/3,168.54
  6. Step 6: Final answer
    x = 2,281.74

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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.