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Finding the Fourth Proportional to 4,980.90, 7,476.24 and 3,799.92

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Solution

The fourth proportional to 4,980.90, 7,476.24 and 3,799.92 is: 5,703.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.90 : 7,476.24 = 3,799.92 : x
  2. Step 2: Convert to fraction form
    4,980.90/7,476.24 = 3,799.92/x
  3. Step 3: Cross multiply
    4,980.90x = 7,476.24 × 3,799.92
  4. Step 4: Simplify right side
    4,980.90x = 28,409,113.90
  5. Step 5: Solve for x
    x = 28,409,113.90/4,980.90
  6. Step 6: Final answer
    x = 5,703.61

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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.