Home / 3,719.07-5,132.43-2,147.13

Finding the Fourth Proportional to 3,719.07, 5,132.43 and 2,147.13

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Solution

The fourth proportional to 3,719.07, 5,132.43 and 2,147.13 is: 2,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.07 : 5,132.43 = 2,147.13 : x
  2. Step 2: Convert to fraction form
    3,719.07/5,132.43 = 2,147.13/x
  3. Step 3: Cross multiply
    3,719.07x = 5,132.43 × 2,147.13
  4. Step 4: Simplify right side
    3,719.07x = 11,019,994.43
  5. Step 5: Solve for x
    x = 11,019,994.43/3,719.07
  6. Step 6: Final answer
    x = 2,963.10

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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.