Home / 3,719.36-5,132.60-2,040.72

Finding the Fourth Proportional to 3,719.36, 5,132.60 and 2,040.72

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Solution

The fourth proportional to 3,719.36, 5,132.60 and 2,040.72 is: 2,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.36 : 5,132.60 = 2,040.72 : x
  2. Step 2: Convert to fraction form
    3,719.36/5,132.60 = 2,040.72/x
  3. Step 3: Cross multiply
    3,719.36x = 5,132.60 × 2,040.72
  4. Step 4: Simplify right side
    3,719.36x = 10,474,199.47
  5. Step 5: Solve for x
    x = 10,474,199.47/3,719.36
  6. Step 6: Final answer
    x = 2,816.13

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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.