Home / 3,719.67-5,132.78-2,148.27

Finding the Fourth Proportional to 3,719.67, 5,132.78 and 2,148.27

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Solution

The fourth proportional to 3,719.67, 5,132.78 and 2,148.27 is: 2,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.67 : 5,132.78 = 2,148.27 : x
  2. Step 2: Convert to fraction form
    3,719.67/5,132.78 = 2,148.27/x
  3. Step 3: Cross multiply
    3,719.67x = 5,132.78 × 2,148.27
  4. Step 4: Simplify right side
    3,719.67x = 11,026,586.55
  5. Step 5: Solve for x
    x = 11,026,586.55/3,719.67
  6. Step 6: Final answer
    x = 2,964.40

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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.