Home / 6,790.21-10,188.12-2,988.90

Finding the Fourth Proportional to 6,790.21, 10,188.12 and 2,988.90

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Solution

The fourth proportional to 6,790.21, 10,188.12 and 2,988.90 is: 4,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.21 : 10,188.12 = 2,988.90 : x
  2. Step 2: Convert to fraction form
    6,790.21/10,188.12 = 2,988.90/x
  3. Step 3: Cross multiply
    6,790.21x = 10,188.12 × 2,988.90
  4. Step 4: Simplify right side
    6,790.21x = 30,451,262.06
  5. Step 5: Solve for x
    x = 30,451,262.06/6,790.21
  6. Step 6: Final answer
    x = 4,484.58

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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.