Home / 4,990.12-7,487.88-2,070.44

Finding the Fourth Proportional to 4,990.12, 7,487.88 and 2,070.44

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Solution

The fourth proportional to 4,990.12, 7,487.88 and 2,070.44 is: 3,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.12 : 7,487.88 = 2,070.44 : x
  2. Step 2: Convert to fraction form
    4,990.12/7,487.88 = 2,070.44/x
  3. Step 3: Cross multiply
    4,990.12x = 7,487.88 × 2,070.44
  4. Step 4: Simplify right side
    4,990.12x = 15,503,206.27
  5. Step 5: Solve for x
    x = 15,503,206.27/4,990.12
  6. Step 6: Final answer
    x = 3,106.78

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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.