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Finding the Fourth Proportional to 2,008.92, 3,008.04 and 1,420.72

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Solution

The fourth proportional to 2,008.92, 3,008.04 and 1,420.72 is: 2,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.92 : 3,008.04 = 1,420.72 : x
  2. Step 2: Convert to fraction form
    2,008.92/3,008.04 = 1,420.72/x
  3. Step 3: Cross multiply
    2,008.92x = 3,008.04 × 1,420.72
  4. Step 4: Simplify right side
    2,008.92x = 4,273,582.59
  5. Step 5: Solve for x
    x = 4,273,582.59/2,008.92
  6. Step 6: Final answer
    x = 2,127.30

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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.