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Finding the Fourth Proportional to 4,145.76, 6,210.12 and 2,193.84

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Solution

The fourth proportional to 4,145.76, 6,210.12 and 2,193.84 is: 3,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.76 : 6,210.12 = 2,193.84 : x
  2. Step 2: Convert to fraction form
    4,145.76/6,210.12 = 2,193.84/x
  3. Step 3: Cross multiply
    4,145.76x = 6,210.12 × 2,193.84
  4. Step 4: Simplify right side
    4,145.76x = 13,624,009.66
  5. Step 5: Solve for x
    x = 13,624,009.66/4,145.76
  6. Step 6: Final answer
    x = 3,286.25

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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.