Home / 7,110.21-10,657.14-3,991.62

Finding the Fourth Proportional to 7,110.21, 10,657.14 and 3,991.62

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Solution

The fourth proportional to 7,110.21, 10,657.14 and 3,991.62 is: 5,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.21 : 10,657.14 = 3,991.62 : x
  2. Step 2: Convert to fraction form
    7,110.21/10,657.14 = 3,991.62/x
  3. Step 3: Cross multiply
    7,110.21x = 10,657.14 × 3,991.62
  4. Step 4: Simplify right side
    7,110.21x = 42,539,253.17
  5. Step 5: Solve for x
    x = 42,539,253.17/7,110.21
  6. Step 6: Final answer
    x = 5,982.84

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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.