Home / 3,711.92-5,119.62-3,045.20

Finding the Fourth Proportional to 3,711.92, 5,119.62 and 3,045.20

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Solution

The fourth proportional to 3,711.92, 5,119.62 and 3,045.20 is: 4,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.92 : 5,119.62 = 3,045.20 : x
  2. Step 2: Convert to fraction form
    3,711.92/5,119.62 = 3,045.20/x
  3. Step 3: Cross multiply
    3,711.92x = 5,119.62 × 3,045.20
  4. Step 4: Simplify right side
    3,711.92x = 15,590,266.82
  5. Step 5: Solve for x
    x = 15,590,266.82/3,711.92
  6. Step 6: Final answer
    x = 4,200.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.