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Finding the Fourth Proportional to 4,000.08, 6,000.12 and 1,403.04

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Solution

The fourth proportional to 4,000.08, 6,000.12 and 1,403.04 is: 2,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.08 : 6,000.12 = 1,403.04 : x
  2. Step 2: Convert to fraction form
    4,000.08/6,000.12 = 1,403.04/x
  3. Step 3: Cross multiply
    4,000.08x = 6,000.12 × 1,403.04
  4. Step 4: Simplify right side
    4,000.08x = 8,418,408.36
  5. Step 5: Solve for x
    x = 8,418,408.36/4,000.08
  6. Step 6: Final answer
    x = 2,104.56

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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.