Home / 3,719.15-5,132.09-2,125.48

Finding the Fourth Proportional to 3,719.15, 5,132.09 and 2,125.48

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Solution

The fourth proportional to 3,719.15, 5,132.09 and 2,125.48 is: 2,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.15 : 5,132.09 = 2,125.48 : x
  2. Step 2: Convert to fraction form
    3,719.15/5,132.09 = 2,125.48/x
  3. Step 3: Cross multiply
    3,719.15x = 5,132.09 × 2,125.48
  4. Step 4: Simplify right side
    3,719.15x = 10,908,128.99
  5. Step 5: Solve for x
    x = 10,908,128.99/3,719.15
  6. Step 6: Final answer
    x = 2,932.97

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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.