Home / 4,079.96-6,119.84-1,158.20

Finding the Fourth Proportional to 4,079.96, 6,119.84 and 1,158.20

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Solution

The fourth proportional to 4,079.96, 6,119.84 and 1,158.20 is: 1,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.96 : 6,119.84 = 1,158.20 : x
  2. Step 2: Convert to fraction form
    4,079.96/6,119.84 = 1,158.20/x
  3. Step 3: Cross multiply
    4,079.96x = 6,119.84 × 1,158.20
  4. Step 4: Simplify right side
    4,079.96x = 7,087,998.69
  5. Step 5: Solve for x
    x = 7,087,998.69/4,079.96
  6. Step 6: Final answer
    x = 1,737.27

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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.