Home / 4,990.95-7,481.43-2,518.29

Finding the Fourth Proportional to 4,990.95, 7,481.43 and 2,518.29

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Solution

The fourth proportional to 4,990.95, 7,481.43 and 2,518.29 is: 3,774.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.95 : 7,481.43 = 2,518.29 : x
  2. Step 2: Convert to fraction form
    4,990.95/7,481.43 = 2,518.29/x
  3. Step 3: Cross multiply
    4,990.95x = 7,481.43 × 2,518.29
  4. Step 4: Simplify right side
    4,990.95x = 18,840,410.35
  5. Step 5: Solve for x
    x = 18,840,410.35/4,990.95
  6. Step 6: Final answer
    x = 3,774.91

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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.