Home / 4,127.36-5,690.88-3,378.56

Finding the Fourth Proportional to 4,127.36, 5,690.88 and 3,378.56

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Solution

The fourth proportional to 4,127.36, 5,690.88 and 3,378.56 is: 4,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.36 : 5,690.88 = 3,378.56 : x
  2. Step 2: Convert to fraction form
    4,127.36/5,690.88 = 3,378.56/x
  3. Step 3: Cross multiply
    4,127.36x = 5,690.88 × 3,378.56
  4. Step 4: Simplify right side
    4,127.36x = 19,226,979.53
  5. Step 5: Solve for x
    x = 19,226,979.53/4,127.36
  6. Step 6: Final answer
    x = 4,658.42

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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.