Home / 3,719.88-5,133.51-2,148.08

Finding the Fourth Proportional to 3,719.88, 5,133.51 and 2,148.08

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Solution

The fourth proportional to 3,719.88, 5,133.51 and 2,148.08 is: 2,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.88 : 5,133.51 = 2,148.08 : x
  2. Step 2: Convert to fraction form
    3,719.88/5,133.51 = 2,148.08/x
  3. Step 3: Cross multiply
    3,719.88x = 5,133.51 × 2,148.08
  4. Step 4: Simplify right side
    3,719.88x = 11,027,164.49
  5. Step 5: Solve for x
    x = 11,027,164.49/3,719.88
  6. Step 6: Final answer
    x = 2,964.39

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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.