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Finding the Fourth Proportional to 2,664.68, 3,993.18 and 2,088.68

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Solution

The fourth proportional to 2,664.68, 3,993.18 and 2,088.68 is: 3,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.68 : 3,993.18 = 2,088.68 : x
  2. Step 2: Convert to fraction form
    2,664.68/3,993.18 = 2,088.68/x
  3. Step 3: Cross multiply
    2,664.68x = 3,993.18 × 2,088.68
  4. Step 4: Simplify right side
    2,664.68x = 8,340,475.20
  5. Step 5: Solve for x
    x = 8,340,475.20/2,664.68
  6. Step 6: Final answer
    x = 3,130.01

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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.