Home / 7,119.84-10,677.96-2,121.06

Finding the Fourth Proportional to 7,119.84, 10,677.96 and 2,121.06

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Solution

The fourth proportional to 7,119.84, 10,677.96 and 2,121.06 is: 3,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.84 : 10,677.96 = 2,121.06 : x
  2. Step 2: Convert to fraction form
    7,119.84/10,677.96 = 2,121.06/x
  3. Step 3: Cross multiply
    7,119.84x = 10,677.96 × 2,121.06
  4. Step 4: Simplify right side
    7,119.84x = 22,648,593.84
  5. Step 5: Solve for x
    x = 22,648,593.84/7,119.84
  6. Step 6: Final answer
    x = 3,181.05

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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.