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Finding the Fourth Proportional to 4,502.20, 6,750.90 and 1,902.20

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Solution

The fourth proportional to 4,502.20, 6,750.90 and 1,902.20 is: 2,852.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,502.20 : 6,750.90 = 1,902.20 : x
  2. Step 2: Convert to fraction form
    4,502.20/6,750.90 = 1,902.20/x
  3. Step 3: Cross multiply
    4,502.20x = 6,750.90 × 1,902.20
  4. Step 4: Simplify right side
    4,502.20x = 12,841,561.98
  5. Step 5: Solve for x
    x = 12,841,561.98/4,502.20
  6. Step 6: Final answer
    x = 2,852.29

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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.