Home / 3,719.58-5,133.78-2,147.46

Finding the Fourth Proportional to 3,719.58, 5,133.78 and 2,147.46

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Solution

The fourth proportional to 3,719.58, 5,133.78 and 2,147.46 is: 2,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.58 : 5,133.78 = 2,147.46 : x
  2. Step 2: Convert to fraction form
    3,719.58/5,133.78 = 2,147.46/x
  3. Step 3: Cross multiply
    3,719.58x = 5,133.78 × 2,147.46
  4. Step 4: Simplify right side
    3,719.58x = 11,024,587.20
  5. Step 5: Solve for x
    x = 11,024,587.20/3,719.58
  6. Step 6: Final answer
    x = 2,963.93

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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.