Home / 3,719.80-5,133.12-2,041.28

Finding the Fourth Proportional to 3,719.80, 5,133.12 and 2,041.28

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Solution

The fourth proportional to 3,719.80, 5,133.12 and 2,041.28 is: 2,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.80 : 5,133.12 = 2,041.28 : x
  2. Step 2: Convert to fraction form
    3,719.80/5,133.12 = 2,041.28/x
  3. Step 3: Cross multiply
    3,719.80x = 5,133.12 × 2,041.28
  4. Step 4: Simplify right side
    3,719.80x = 10,478,135.19
  5. Step 5: Solve for x
    x = 10,478,135.19/3,719.80
  6. Step 6: Final answer
    x = 2,816.85

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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.