Home / 7,091.90-10,639.68-3,396.98

Finding the Fourth Proportional to 7,091.90, 10,639.68 and 3,396.98

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Solution

The fourth proportional to 7,091.90, 10,639.68 and 3,396.98 is: 5,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.90 : 10,639.68 = 3,396.98 : x
  2. Step 2: Convert to fraction form
    7,091.90/10,639.68 = 3,396.98/x
  3. Step 3: Cross multiply
    7,091.90x = 10,639.68 × 3,396.98
  4. Step 4: Simplify right side
    7,091.90x = 36,142,780.17
  5. Step 5: Solve for x
    x = 36,142,780.17/7,091.90
  6. Step 6: Final answer
    x = 5,096.35

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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.