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Finding the Fourth Proportional to 2,008.76, 3,014.16 and 1,230.40

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Solution

The fourth proportional to 2,008.76, 3,014.16 and 1,230.40 is: 1,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.76 : 3,014.16 = 1,230.40 : x
  2. Step 2: Convert to fraction form
    2,008.76/3,014.16 = 1,230.40/x
  3. Step 3: Cross multiply
    2,008.76x = 3,014.16 × 1,230.40
  4. Step 4: Simplify right side
    2,008.76x = 3,708,622.46
  5. Step 5: Solve for x
    x = 3,708,622.46/2,008.76
  6. Step 6: Final answer
    x = 1,846.22

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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.