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Finding the Fourth Proportional to 3,719.79, 5,133.20 and 2,041.13

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Solution

The fourth proportional to 3,719.79, 5,133.20 and 2,041.13 is: 2,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.79 : 5,133.20 = 2,041.13 : x
  2. Step 2: Convert to fraction form
    3,719.79/5,133.20 = 2,041.13/x
  3. Step 3: Cross multiply
    3,719.79x = 5,133.20 × 2,041.13
  4. Step 4: Simplify right side
    3,719.79x = 10,477,531.14
  5. Step 5: Solve for x
    x = 10,477,531.14/3,719.79
  6. Step 6: Final answer
    x = 2,816.70

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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.