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Finding the Fourth Proportional to 4,818.70, 7,229.85 and 1,899.04

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Solution

The fourth proportional to 4,818.70, 7,229.85 and 1,899.04 is: 2,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.70 : 7,229.85 = 1,899.04 : x
  2. Step 2: Convert to fraction form
    4,818.70/7,229.85 = 1,899.04/x
  3. Step 3: Cross multiply
    4,818.70x = 7,229.85 × 1,899.04
  4. Step 4: Simplify right side
    4,818.70x = 13,729,774.34
  5. Step 5: Solve for x
    x = 13,729,774.34/4,818.70
  6. Step 6: Final answer
    x = 2,849.27

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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.