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Finding the Fourth Proportional to 4,920.96, 7,380.48 and 1,802.88

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Solution

The fourth proportional to 4,920.96, 7,380.48 and 1,802.88 is: 2,703.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.96 : 7,380.48 = 1,802.88 : x
  2. Step 2: Convert to fraction form
    4,920.96/7,380.48 = 1,802.88/x
  3. Step 3: Cross multiply
    4,920.96x = 7,380.48 × 1,802.88
  4. Step 4: Simplify right side
    4,920.96x = 13,306,119.78
  5. Step 5: Solve for x
    x = 13,306,119.78/4,920.96
  6. Step 6: Final answer
    x = 2,703.97

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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.