Home / 3,719.24-5,132.51-2,147.30

Finding the Fourth Proportional to 3,719.24, 5,132.51 and 2,147.30

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Solution

The fourth proportional to 3,719.24, 5,132.51 and 2,147.30 is: 2,963.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.24 : 5,132.51 = 2,147.30 : x
  2. Step 2: Convert to fraction form
    3,719.24/5,132.51 = 2,147.30/x
  3. Step 3: Cross multiply
    3,719.24x = 5,132.51 × 2,147.30
  4. Step 4: Simplify right side
    3,719.24x = 11,021,051.55
  5. Step 5: Solve for x
    x = 11,021,051.55/3,719.24
  6. Step 6: Final answer
    x = 2,963.25

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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.