Home / 4,990.01-7,481.65-1,986.05

Finding the Fourth Proportional to 4,990.01, 7,481.65 and 1,986.05

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Solution

The fourth proportional to 4,990.01, 7,481.65 and 1,986.05 is: 2,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.01 : 7,481.65 = 1,986.05 : x
  2. Step 2: Convert to fraction form
    4,990.01/7,481.65 = 1,986.05/x
  3. Step 3: Cross multiply
    4,990.01x = 7,481.65 × 1,986.05
  4. Step 4: Simplify right side
    4,990.01x = 14,858,948.45
  5. Step 5: Solve for x
    x = 14,858,948.45/4,990.01
  6. Step 6: Final answer
    x = 2,977.74

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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.